Mobile QR Code QR CODE : Korean Journal of Air-Conditioning and Refrigeration Engineering

  1. ์„ฑ๊ท ๊ด€๋Œ€ํ•™๊ต ๊ฑด์„คํ™˜๊ฒฝ๊ณตํ•™๋ถ€ ๊ต์ˆ˜ ( Graduate Student, Department of Mechanical Engineering, Korea University, Seoul 02841, Republic of Korea )
  2. ํ•œ๊ตญ๊ตํ†ต๋Œ€ํ•™๊ต ๊ธฐ๊ณ„๊ณตํ•™๊ณผ ๊ต์ˆ˜ ( Professor, Dept. of Mechanical Eng., Korea National University of Transportation, Chungju, 27469, Korea )
  3. ์—ฐ์„ธ๋Œ€ํ•™๊ต ๊ฑด์ถ•๊ณตํ•™๊ณผ ๊ต์ˆ˜ ( Professor, Dept. of Architecture & Architectural Eng., Yonsei University, Seoul, 03722, Korea )
  4. ์•„์ฃผ๋Œ€ํ•™๊ต ๊ธฐ๊ณ„๊ณตํ•™๊ณผ ๊ต์ˆ˜ ( Professor, Dept. of Mechanical Eng., Ajou University, Suwon, 16499, Korea )
  5. ๋ถ€์‚ฐ๋Œ€ํ•™๊ต ๊ฑด์ถ•๊ณตํ•™๊ณผ ๋ถ€๊ต์ˆ˜ ( Associate Professor, Dept. of Architectural Eng., Pusan National University, Pusan, 46241, Korea )
  6. ์ œ์ฃผ๋Œ€ํ•™๊ต ๊ธฐ๊ณ„๊ณตํ•™๊ณผ ๊ต์ˆ˜ ( Professor, Dept. of Mechanical Eng., Jeju National University, Jeju, 63243, Korea )
  7. ํ•œ๊ตญ์—๋„ˆ์ง€๊ธฐ์ˆ ์—ฐ๊ตฌ์› ์—ด์—๋„ˆ์ง€์‹œ์Šคํ…œ์—ฐ๊ตฌ์‹ค ์ฑ…์ž„์—ฐ๊ตฌ์› ( Principal researcher, Thermal Energy Systems Lab., Korea Institute of Energy Research, Daejeon, 34129, Korea )
  8. ๊ณ ๋ ค๋Œ€ํ•™๊ต ๊ฑด์ถ•ํ•™๊ณผ ๋ถ€๊ต์ˆ˜ ( Associate Professor, Dept. of Architecture, Korea University, Seoul, 02841, Korea )
  9. ํ•œ์–‘๋Œ€ํ•™๊ต ๊ฑด์ถ•๊ณตํ•™๋ถ€ ๊ต์ˆ˜ ( Professor, Dept. of Architectural Eng., Hanyang University, Seoul, 04763, Korea )



Air-conditioning(๋ƒ‰๋ฐฉ), Heating(๋‚œ๋ฐฉ), Ventilation(ํ™˜๊ธฐ), Refrigeration(๋ƒ‰๋™), Heat transfer(์—ด์ „๋‹ฌ), Indoor air quality(์‹ค๋‚ด๊ณต๊ธฐ์งˆ), Energy saving(์—๋„ˆ์ง€ ์ ˆ๊ฐ), Heat pump(ํžˆํŠธํŽŒํ”„), Dehumidification (์ œ์Šต), Absorption chiller(ํก์ˆ˜์‹ ๋ƒ‰๋™๊ธฐ), Compressor(์••์ถ•๊ธฐ), PV(ํƒœ์–‘๊ด‘), Refrigerant(๋ƒ‰๋งค), Simulation(์‹œ๋ฎฌ๋ ˆ์ด์…˜), Data center(๋ฐ์ดํ„ฐ์„ผํ„ฐ), Mass transfer(๋ฌผ์งˆ์ „๋‹ฌ), Negative pressure isolation room (์Œ์••๊ฒฉ๋ฆฌ๋ณ‘์‹ค), COVID-19(์ฝ”๋กœ๋‚˜19)

1. ์„œ ๋ก 

์ด ๋…ผ๋ฌธ์€ 2020๋…„๋„์— ๋Œ€ํ•œ์„ค๋น„๊ณตํ•™ํšŒ โ€˜์„ค๋น„๊ณตํ•™๋…ผ๋ฌธ์ง‘โ€™์— ๋ฐœํ‘œ๋œ ๋…ผ๋ฌธ์„ ๋ถ„์„ํ•˜์—ฌ ์„ค๋น„๊ณตํ•™ ๋ถ„์•ผ์˜ ์ตœ๊ทผ ๊ธฐ์ˆ  ๋ฐ ์—ฐ๊ตฌ๋™ํ–ฅ์„ ํŒŒ์•…ํ•˜๊ณ ์ž ํ•˜๋Š” ๋ชฉ์ ์œผ๋กœ ์ž‘์„ฑ๋˜์—ˆ๋‹ค. ๋ฐœํ‘œ๋œ ๋…ผ๋ฌธ๋“ค์„ ๋ถ„๋ฅ˜ํ•˜๋ฉด ๊ฑด์ถ•๊ธฐ๊ณ„์„ค๋น„, ๊ฑด์ถ•ํ™˜๊ฒฝ, ๋ƒ‰๋™, ์—ด์ „๋‹ฌ ๋ฐ ์—ด์œ ์ฒด๋กœ ๋ถ„๋ฅ˜ํ•  ์ˆ˜ ์žˆ๋‹ค(Fig. 1 ์ฐธ์กฐ).

๋˜ํ•œ ์ด๋“ค ๋…ผ๋ฌธ๋“ค์—์„œ ์ œ์‹œํ•˜์˜€๋˜ ํ‚ค์›Œ๋“œ๋ฅผ ์ •๋ฆฌํ•˜๋ฉด ๋‹ค์Œ Fig. 2์™€ ๊ฐ™๋‹ค. 2020๋…„๋„์— ๋ฐœํ‘œ๋œ ๋…ผ๋ฌธ๋“ค์—์„œ ๊ฐ€์žฅ ๋งŽ์ด ์ œ์‹œ๋œ ํ‚ค์›Œ๋“œ๋Š” ํ™˜๊ธฐ, ๋ฐ์ดํ„ฐ์„ผํ„ฐ, ์—ดํšŒ์ˆ˜ ํ™˜๊ธฐ์žฅ์น˜, ์ง€์—ด, ํก์ˆ˜์‹, ๊ฑด๋ฌผ์—๋„ˆ์ง€, ์—๋„ˆ์ง€์ ˆ๊ฐ, ์—ด์ „๋‹ฌ, ํƒœ์–‘๊ด‘, ๋Œ€์ฒด๋ƒ‰๋งค, ๋ƒ‰๋ฐฉ๋ถ€ํ•˜, ํžˆํŠธํŽŒํ”„ ๋“ฑ์ด ๋†’๊ฒŒ ๋‚˜ํƒ€๋‚ฌ์œผ๋ฉฐ, ์ฝ”๋กœ๋‚˜ ์ƒํ™ฉ์— ๋”ฐ๋ผ COVID-19, ์Œ์••๋ณ‘๋™, UV ์‚ด๊ท  ๋“ฑ์˜ ์ƒˆ๋กœ์šด ํ‚ค์›Œ๋“œ๊ฐ€ ์ œ์‹œ๋˜๊ธฐ๋„ ํ•˜์˜€๋‹ค.

๋ณธ ๋…ผ๋ฌธ์ด ์„ค๋น„๊ณตํ•™ ๋ถ„์•ผ์˜ ์ตœ์‹  ์—ฐ๊ตฌ๋™ํ–ฅ์„ ํŒŒ์•…ํ•˜๋Š”๋ฐ ๋„์›€์„ ์ค„ ์ˆ˜ ์žˆ์„ ๊ฒƒ์œผ๋กœ ๊ธฐ๋Œ€ํ•œ๋‹ค.

Fig. 1 Number of papers by subject published in the korean journal of air-conditioning and refrigeration engineering in 2019.
../../Resources/sarek/KJACR.2021.33.6.300/fig1.png

Fig. 2 Number of keyword suggested in the paper of korean journal of air-conditioning and refrigeration engineering in 2020.
../../Resources/sarek/KJACR.2021.33.6.300/fig2.png

2. ๊ฑด์ถ•๊ธฐ๊ณ„์„ค๋น„

2.1 ๊ฐœ์š”

2020๋…„ ๊ฑด์ถ•๊ธฐ๊ณ„์„ค๋น„๋ถ„์•ผ์—์„œ ๋ฐœํ‘œ๋œ ๋…ผ๋ฌธ๋“ค์€ ๊ธฐ๊ณ„์„ค๋น„ ๋ถ„์•ผ ์ „๋ฐ˜, ๋ƒ‰๋‚œ๋ฐฉ ๋ฐ ํ™˜๊ธฐ์‹œ์Šคํ…œ ๊ด€๋ จ ๊ธฐ์ˆ , ๊ธ‰ํƒ•์‹œ์Šคํ…œ, ๋ฐ์ดํ„ฐ์„ผํ„ฐ ๋ฐ ํด๋ฆฐ๋ฃธ ๊ด€๋ จ ๊ธฐ์ˆ , ์‹ ์žฌ์ƒ์—๋„ˆ์ง€ ๊ด€๋ จ ๊ธฐ์ˆ , ๊ธฐํƒ€ ๊ธฐ๊ณ„์„ค๋น„๊ธฐ์ˆ ๋กœ ๋ถ„๋ฅ˜ํ•  ์ˆ˜ ์žˆ์œผ๋ฉฐ ๊ฐ ๋…ผ๋ฌธ์˜ ๋‚ด์šฉ์„ ์ •๋ฆฌํ•˜๋ฉด ๋‹ค์Œ๊ณผ ๊ฐ™๋‹ค.

2.2 ๊ฑด์ถ•๊ธฐ๊ณ„์„ค๋น„ ์ „๋ฐ˜

Kim(1)์€ PROMETHEE II-GAIA ๋ฐฉ๋ฒ•๋ก ์„ ์ด์šฉํ•˜์—ฌ ์„ค๋น„ ์ •๋น„์‹œ๊ธฐ ์‚ฐ์ • ์‹œ ์ƒ์ถฉํ•˜๋Š” ์‹ ๋ขฐ๋„์™€ ์ •๋น„ ๋น„์šฉ์„ ๋ชจ๋ธํ™”ํ•˜๊ณ , ํ†ต์ƒ ๊ณ ์žฅ ๋ฌธ์ œ ์‹œ ์ฑ…์ž„ ์†Œ์žฌ ๋•Œ๋ฌธ์— ์‹ ๋ขฐ๋„๋ฅผ ๋” ํฌ๊ฒŒ ๋ฐ˜์˜ํ•˜๋Š” ๊ฒƒ์—์„œ ํƒˆํ”ผํ•˜์—ฌ ์ตœ์ ์˜ ์ •๋น„์‹œ๊ธฐ๋ฅผ ์‚ฐ์ •ํ•  ์ˆ˜ ์žˆ๋Š” ๋ชจ๋ธ์„ ์ œ์‹œํ•˜์˜€๋‹ค.

Lee and Chung(2)์€ ์•ก์ฒด์‹ ์ œ์Šต์‹œ์Šคํ…œ์„ ์†Œํ˜•ํ™”ํ•˜๊ธฐ ์œ„ํ•ด ์ ์šฉ๋œ ์ด์ค‘ ์ˆ˜์กฐ์—์„œ ์ˆ˜์šฉ์•ก์„ ์ง์ ‘ ๊ตํ™˜ํ•˜๋Š” ํ˜•ํƒœ์™€ ๋ฉค๋ธŒ๋ ˆ์ธ ๊ธฐ์ˆ ์„ ํ™œ์šฉํ•˜์—ฌ ๋ฌผ๋งŒ ์ด๋™์‹œํ‚ค๋Š” ํ˜•ํƒœ์˜ ์ˆ˜์šฉ์•ก ๋ƒ‰๊ฐ ๋ฐ ๊ฐ€์—ด ๋ถ€ํ•˜๋ฅผ ๋น„๊ตํ•˜์˜€๋‹ค.

Cho et al.(3)์€ ๋ฐ์ดํ„ฐ์„ผํ„ฐ์˜ ๋Œ€ํ‘œ์ ์ธ ์—๋„ˆ์ง€ํšจ์œจ ๊ฐœ์„  ์†”๋ฃจ์…˜์ธ HAC ๋ฐ CAC์˜ IT๊ณต์กฐํ™˜๊ฒฝ์„ ๋น„๊ต๋ถ„์„์„ ์œ„ํ•˜์—ฌ ์‹ค์ œ ๋ฐ์ดํ„ฐ์„ผํ„ฐ๋ฅผ ๋Œ€์ƒ์œผ๋กœ CFD ์‹œ๋ฎฌ๋ ˆ์ด์…˜์„ ์ˆ˜ํ–‰ํ•˜์˜€๋‹ค. HAC์™€ CAC์— ์ ์šฉ๋œ ๋ƒ‰๊ฐ์‹œ์Šคํ…œ์˜ ๊ฐ€๋™์„ฑ๋Šฅ๊ณผ ์„œ๋ฒ„๋ฃธ ๋‚ด๋ถ€์˜ IT๊ณต์กฐํ™˜๊ฒฝ์˜ ์ฐจ์ด๋ฅผ ๋น„๊ตํ•˜๋Š” ๋ชฉ์ ์œผ๋กœ ์ˆ˜ํ–‰๋˜์—ˆ๋‹ค.

Yang et al.(4)์€ ๊ธฐ๊ณ„์„ค๋น„๋ฒ• ์ œ์ •์— ๋”ฐ๋ฅธ ์„ค๋น„์˜ ์ •์˜ ๋ฐ ์ •๋ณด์ฒด๊ณ„ ๊ตฌ์ถ•์— ๊ด€ํ•˜์—ฌ ๋ฐ์ดํ„ฐ ๋ถ„๋ฅ˜๋ฅผ ์‹ค์‹œํ•˜๊ณ , ๋ถ„๋ฅ˜๋œ ๋ฐ์ดํ„ฐ๋ฅผ ๊ธฐ๋ฐ˜์œผ๋กœ ๊ธฐ๊ณ„์„ค๋น„๋ฒ• ์ œ7์กฐ(๊ธฐ๊ณ„์„ค๋น„์‚ฐ์—… ์ •๋ณด์ฒด๊ณ„์˜ ๊ตฌ์ถ•)์— ๋”ฐ๋ฅธ ๊ธฐ๊ณ„์„ค๋น„์‚ฐ์—… ์ •๋ณด์ฒด๊ณ„ ๊ตฌ์ถ•์— ๊ด€ํ•œ ์—ฐ๊ตฌ๋ฅผ ์ง„ํ–‰ํ•˜์˜€๋‹ค. ๊ธฐ๊ณ„์„ค๋น„ ์ •๋ณด์ฒด๊ณ„ ๊ตฌ์ถ•์€ ๊ธฐ๊ณ„์„ค๋น„๋ฒ•๊ณผ ๋…น์ƒ‰๊ฑด์ถ•๋ฒ• ๋“ฑ ํ˜„์žฌ ์‹œํ–‰ ์ค‘์ธ ๋ฒ•์„ ๊ทผ๊ฑฐ๋กœ ํ•˜๋Š” ๊ธฐ๊ณ„์„ค๋น„์˜ ์ •์˜์™€ ๊ธฐ๊ณ„์„ค๋น„๋ฒ•์—์„œ ์ œ์‹œํ•˜๋Š” ์—…๋ฌด ํ”„๋กœ์„ธ์Šค๋ฅผ ๊ธฐ๋ฐ˜์œผ๋กœ ๋ถ„์„ํ•˜์—ฌ ๊ทธ ๊ตฌ์ถ• ๋ฐฉ๋ฒ•์„ ์ œ์‹œํ•˜์˜€๋‹ค.

2.3 ๋‚œ๋ฐฉ ๋ฐ ํ™˜๊ธฐ์‹œ์Šคํ…œ

Ahn et al.(5)์€ ๊ณต์กฐ๊ธฐ์˜ ์‹ค์ธก๋ฐ์ดํ„ฐ๋ฅผ ํ™œ์šฉํ•ด, ๊ธฐ๊ณ„ํ•™์Šต์„ ํ†ตํ•œ ๊ณต์กฐ๊ธฐ ๊ธ‰๊ธฐ์˜จ๋„ ์˜ˆ์ธก๋ชจ๋ธ์˜ ์ •ํ™•๋„ ๊ฐœ์„ ์„ ์œ„ํ•œ ๋งค๊ฐœ๋ณ€์ˆ˜ ์„ ์ • ๋ฐฉ์•ˆ์„ ๋ถ„์„ ๋ฐ ๊ธฐ์กด ANN ๋ชจ๋ธ์„ ์ด์šฉํ•œ ์˜ˆ์ธก๋ชจ๋ธ๊ณผ ๋น„๊ตํ•˜์˜€๋‹ค.

Park et al.(6)์€ CFD ์‹œ๋ฎฌ๋ ˆ์ด์…˜์„ ํ†ตํ•ด ์ง€ํ•˜์ฃผ์ฐจ์žฅ ๊ธฐ๊ณ„ํ™˜๊ธฐ์‹œ์Šคํ…œ์˜ ์„ฑ๋Šฅ ๊ฐœ์„  ๋ฐฉ์•ˆ์„ ๋ถ„์„ํ•˜์˜€์œผ๋ฉฐ, ํ™˜๊ธฐ์‹œ์Šคํ…œ ์žฌ์„ค๊ณ„๋ฅผ ํ†ตํ•ด ์†กํ’๊ธฐ์˜ ์†Œ๋น„์ „๋ ฅ์„ ์ถ”๊ฐ€์ ์œผ๋กœ ์ €๊ฐํ•  ์ˆ˜ ์žˆ์Œ์„ ํ™•์ธํ•˜์˜€๋‹ค.

Yeom et al.(7)์€ ์ง€์—ญ๋‚œ๋ฐฉ์ด ์ ์šฉ๋œ ๊ณต๋™์ฃผํƒ์—์„œ ์—๋„ˆ์ง€ ์ ˆ์•ฝ์ ์ธ ๋‚œ๋ฐฉ ๊ณต๊ธ‰์„ ์œ„ํ•ด ์™ธ๊ธฐ๋ณด์ƒ์ œ์–ด์˜ ๊ณต๊ธ‰์˜จ๋„๋ฅผ ์ •๊ทœํ™”ํ•˜์—ฌ ์ ์ • ๋‚œ๋ฐฉ๊ณต๊ธ‰์˜จ๋„๋ฅผ ๋„์ถœํ•˜์˜€๊ณ , ์ด์— ๋”ฐ๋ฅธ ๋ถ€ํ•˜๋งŒ์กฑ๋„๋ฅผ ๋ถ„์„ํ•˜์˜€๋‹ค.

Ko et al.(8)์€ ๋‹ค๋ฅธ ์„ฑ๋Šฅ์„ ๊ฐ€์ง„ ์—ดํšŒ์ˆ˜ํ˜• ํ™˜๊ธฐ์žฅ์น˜์˜ ์Šต๋„๊ตํ™˜ํšจ์œจ์— ๋”ฐ๋ฅธ ํ™˜๊ธฐ์žฅ์น˜ ๋‚ด๋ถ€์˜ ๊ฒฐ๋กœ ๋ฐœ์ƒ์œจ๊ณผ ์—๋„ˆ์ง€ ํšŒ์ˆ˜์œจ์„ ์‹œ๋ฎฌ๋ ˆ์ด์…˜์„ ํ†ตํ•ด ๋ถ„์„ํ•˜์˜€๊ณ , ๊ฒฐ๋กœ๊ฐ€ ๋ฐœ์ƒํ•  ์ˆ˜ ์žˆ๋Š” ์™ธ๊ธฐ์กฐ๊ฑด์„ ์ œ์‹œํ•˜์˜€๋‹ค.

Kim and Hong(9)์€ ์Œ์••๊ฒฉ๋ฆฌ๋ณ‘์‹ค์˜ ์‹ค์••์ฐจ, ๋ฐฐ๊ธฐ๊ตฌ ์œ„์น˜, ๋ฌธ์˜ ๊ฐœํ์†๋„ ๋ฐ ์˜๋ฃŒ์ง„์˜ ์ด๋™์— ๋”ฐ๋ฅธ ๋ณ‘์‹ค ์™ธ๋ถ€๋กœ์˜ ์˜ค์—ผ๊ณต๊ธฐ ์œ ์ถœ๋Ÿ‰์„ CFD ์‹œ๋ฎฌ๋ ˆ์ด์…˜์„ ํ†ตํ•˜์—ฌ ๋ถ„์„ํ•˜์˜€๋‹ค.

Kang et al.(10)์€ ๋ฏธ์„ธ๋จผ์ง€ ์œ ์ž… ๋ฐฉ์ง€๋ฅผ ์œ„ํ•œ ๋‹ค์–‘ํ•œ ํ•„ํ„ฐ ์ ์šฉ์— ๋”ฐ๋ฅธ ํ™˜๊ธฐ์žฅ์น˜์˜ ์„ฑ๋Šฅ์„ ์‹คํ—˜์„ ํ†ตํ•˜์—ฌ ๋ถ„์„ ๋ฐ ๋น„๊ตํ•˜์˜€๋‹ค.

2.4 ๊ธ‰ํƒ•์‹œ์Šคํ…œ

Kim et al.(11)์€ ๊ฑด๋ฌผ ์˜จ์ˆ˜๋ฐฐ๊ด€์˜ ์—ด์†์‹ค์„ ์ตœ์†Œํ™”ํ•˜๊ธฐ ์œ„ํ•œ ์„ค๊ณ„ ๊ธฐ์ค€์„ ์ œ์‹œํ•˜๊ธฐ ์œ„ํ•ด, CFD ์‹œ๋ฎฌ๋ ˆ์ด์…˜์„ ํ†ตํ•˜์—ฌ ๋‹จ์—ด๋‘๊ป˜ ๊ธฐ์ค€์— ๋”ฐ๋ฅธ ์—ด์†์‹ค ๋ฐ ํ‘œ๋ฉด์˜จ๋„ ์ฐจ์ด๋ฅผ ๋ถ„์„ํ•˜์˜€๋‹ค.

2.5 ๋ฐ์ดํ„ฐ์„ผํ„ฐ ๋ฐ ํด๋ฆฐ๋ฃธ

Cho and Hong(12)์€ ๋ฐ์ดํ„ฐ์„ผํ„ฐ์˜ ๊ฑด๋ฌผ์—๋„ˆ์ง€ ์„ฑ๋Šฅ ์ธก์ • ๋ฐ ํ‰๊ฐ€(M&V)๋ฅผ ์œ„ํ•ด ์—๋„ˆ์ง€ ํšจ์œจ์ง€ํ‘œ์ธ PUE์— ๊ธฐ๋ฐ˜์„ ๋‘” ๊ตฌ์—ญ๋‹จ์œ„ non-IT ์‹œ์Šคํ…œ ์—๋„ˆ์ง€ ๋ชจ๋ธ์„ ๋„์ถœํ•˜๋Š” ๋ฐฉ๋ฒ•๋ก ๊ณผ ๊ธฐ์ค€์„ ์ œ์‹œํ•˜์˜€๋‹ค.

Hwang and Lee(13)๋Š” ๋ฐ์ดํ„ฐ์„ผํ„ฐ์˜ ๋ƒ‰๋ฐฉ๋ถ€ํ•˜ ์ €๊ฐ์„ ์œ„ํ•ด ์ƒ๋Œ€์ ์ธ ์ €์˜จ ์™ธ๊ธฐ๋ฅผ ๋„์ž…์˜ ์—๋„ˆ์ง€ ์ ˆ๊ฐ ์„ฑ๋Šฅ์„ ๋ถ„์„ํ•˜์˜€๊ณ , ์ถ”๊ฐ€์ ์œผ๋กœ ์ „์‚ฐ์žฅ๋น„์™€ ๊ธ‰๋ฐฐ๊ธฐ๊ตฌ์˜ ํšจ์œจ์  ๋ฐฐ์น˜๋ฅผ ํ†ตํ•ด ๋ณด๋‹ค ํšจ์œจ์ ์ธ ์‹ค๋‚ด ๋ƒ‰๋ฐฉ์ด ๊ฐ€๋Šฅํ•จ์„ ํ™•์ธํ•˜์˜€๋‹ค.

2.6 ์‹ ์žฌ์ƒ์—๋„ˆ์ง€

Kim et al.(14)์€ ์ €ํƒ„์†Œ ์—๋„ˆ์ง€๊ณต์œ  ์ปค๋ฎค๋‹ˆํ‹ฐ ๊ตฌํ˜„์„ ์œ„ํ•œ ์—๋„ˆ์ง€์ ˆ๊ฐ ๋ฐ ํšจ์œจ๊ฐœ์„  ๋ฐฉ์•ˆ์œผ๋กœ ๋‹ค์–‘ํ•œ ์‹ ์žฌ์ƒ์—ด์—๋„ˆ์ง€ ์‹œ์Šคํ…œ์„ ์ ์šฉํ•œ ์ง€์—ด์› ๊ธ‰ํƒ• ๊ณต๊ธ‰์‹œ์Šคํ…œ์„ ์ œ์•ˆํ•˜๊ณ , ์ œ์•ˆ๋œ ์‹œ์Šคํ…œ์— ๋Œ€ํ•œ ์—๋„ˆ์ง€ ์ ˆ๊ฐํšจ๊ณผ๋ฅผ ๋ถ„์„ํ•˜์˜€๋‹ค.

Kim et al.(15)์€ ์†Œ๊ทœ๋ชจ ๊ฑด์ถ•๋ฌผ์—์„œ์˜ ์ง€์—ด์‹œ์Šคํ…œ ๋„์ž… ํ™œ์„ฑํ™”๋ฅผ ์œ„ํ•ด ๋ชจ๋“ˆ๋Ÿฌ ์ง€์ค‘์—ด๊ตํ™˜๊ธฐ๋ฅผ ์ œ์•ˆํ•˜๊ณ  CFD ํ•ด์„์„ ํ†ตํ•œ ์„ค๊ณ„ ์ธ์ž ์˜ํ–ฅ๋„ ๋ถ„์„์„ ์‹ค์‹œํ•˜์˜€๋‹ค. ๊ทธ ๊ฒฐ๊ณผ, ์ €์‹ฌ๋„ ๋ชจ๋“ˆ๋Ÿฌ ์ง€์ค‘์—ด๊ตํ™˜๊ธฐ๋Š” ์ผ๋ฐ˜์ ์ธ ์ˆ˜์ง๋ฐ€ํํ˜• ์ง€์ค‘์—ด๊ตํ™˜๊ธฐ์— ๋น„ํ•ด ๋‚ฎ์€ ์‹ฌ๋„์—์„œ ์ฑ„์—ด ๋ฐ ๋ฐฉ์—ด์„ ํ•˜๋ฏ€๋กœ ์™ธ๊ธฐ์˜จ์˜ ๋ณ€ํ™”์— ๋”ฐ๋ฅธ ์—ด์› ์˜จ๋„ ๋ณ€ํ™”๊ฐ€ ์ƒ๋Œ€์ ์œผ๋กœ ํฌ๋ฉฐ ํŒŒ์ดํ”„ ๋‹จ์œ„ ๊ธธ์ด๋‹น ์ฑ„์—ด๋Ÿ‰ ๋˜ํ•œ ๋‚ฎ์Œ์„ ํ™•์ธํ•˜์˜€๋‹ค.

Cho and Lim(16)์€ Earth tube์™€ ์—ด์ „์†Œ์ž๋ฅผ ์กฐํ•ฉํ•œ ์Šต๋„์กฐ์ ˆ ๋ƒ‰๋‚œ๋ฐฉ ์žฅ์น˜์˜ ์„ฑ๋Šฅ์„ ํŒŒ์•…ํ•˜๊ธฐ ์œ„ํ•˜์—ฌ ์‹คํ—˜์„ ์ˆ˜ํ–‰ํ•˜์˜€์œผ๋ฉฐ, ํ•˜์ ˆ๊ธฐ ์ฃผ๊ฐ„ ์ธก์ •๊ธฐ๊ฐ„ ๋™์•ˆ ์œ ๋‹› ํ†ต๊ณผ ์ „โ€คํ›„์˜ ๊ณต๊ธฐ ์˜จ๋„๋Š” 0.4โ„ƒ๋กœ 1.6%์˜ ํ•˜๊ฐ•ํšจ๊ณผ๋ฅผ ๋ณด์ด๋Š” ๋ฐ˜๋ฉด, ์ œ์Šต์€ 15.7%์— ํ•ด๋‹น๋˜๋Š” 0.0019 kg/kg[DA]๋กœ ํฐ ํšจ๊ณผ๊ฐ€ ์žˆ๋Š” ๊ฒƒ์„ ํ™•์ธํ•˜์˜€๋‹ค.

2.7 ๊ธฐํƒ€

Lee(17)์€ ์šฐ๋ฆฌ๋‚˜๋ผ 5๊ฐœ ๊ฑด์„ค์‚ฌ์˜ ์„ค๊ณ„์ง€์นจ์„œ๋ฅผ ํ†ตํ•ด ์•„ํŒŒํŠธ ๊ธ‰์ˆ˜์„ค๋น„ ์„ค๊ณ„์— ๋Œ€ํ•œ ์ ์ •์„ฑ ์—ฌ๋ถ€๋ฅผ ์กฐ์‚ฌํ•˜์—ฌ ๊ด€์ง€๋ฆ„ ๊ฒฐ์ • ์ ˆ์ฐจ ์ค‘ ๊ณตํ•™์ ์œผ๋กœ ๋ถˆํ•ฉ๋ฆฌํ•œ ๋ถ€๋ถ„์„ ์ถ”์ถœํ•˜๊ณ  ์ด์— ๋Œ€ํ•œ ๋Œ€์ฒด ์„ค๊ณ„๋ฒ•์„ ์ œ์‹œํ•˜๊ธฐ ์œ„ํ•˜์—ฌ ์•„ํŒŒํŠธ์—์„œ์˜ ๊ณ„์‚ฐ๊ฒฐ๊ณผ๋ฅผ ๋น„๊ต ํ‰๊ฐ€ํ•˜์˜€๋‹ค.

Kim et al.(18)์€ ์—์ด์ „ํŠธ๋ฅผ ๊ธฐ๋ฐ˜์œผ๋กœ ๋ถ„์‚ฐ์—๋„ˆ์ง€ ์ œ์–ด๋ฅผ ํ†ตํ•œ ์—๋„ˆ์ง€์†Œ๋น„์™€ ํ”ผํฌ๋ƒ‰๋ฐฉ์ „๋ ฅ์ˆ˜์š” ์ ˆ๊ฐ์— ๋Œ€ํ•˜์—ฌ ๊ฑด๋ฌผ ๋ƒ‰๋ฐฉ์‹œ๋ฎฌ๋ ˆ์ด์…˜์„ ํ†ตํ•˜์—ฌ ๊ทธ ํšจ๊ณผ๋ฅผ ๊ฒ€์ฆํ•˜์˜€๋‹ค.

3. ๊ฑด์ถ•ํ™˜๊ฒฝ

3.1 ๊ฐœ์š”

๊ฑด์ถ•ํ™˜๊ฒฝ ๋ถ„์•ผ์˜ ๋…ผ๋ฌธ์€ ํฌ๊ฒŒ ๊ฑด๋ฌผ์—๋„ˆ์ง€, ์‹ค๋‚ดํ™˜๊ฒฝ ๋ฐ ๊ธฐํƒ€๋กœ ๋ถ„๋ฅ˜ํ•  ์ˆ˜ ์žˆ๋‹ค. ๊ฐ ๋…ผ๋ฌธ์˜ ๋‚ด์šฉ์„ ์š”์•ฝ, ์ •๋ฆฌํ•˜๋ฉด ๋‹ค์Œ๊ณผ ๊ฐ™๋‹ค.

3.2 ๊ฑด๋ฌผ์—๋„ˆ์ง€

Jang et al.(19)์€ ๋‹ค์ค‘์ด์šฉ์‹œ์„ค์˜ COVID-19์˜ ์•…์„ฑ ์ „ํŒŒ ๋ฉ”์ปค๋‹ˆ์ฆ˜๊ณผ ๊ด€๋ จํ•˜์—ฌ ๊ฐ์—ผ์„ ์˜ˆ๋ฐฉํ•˜๊ณ  ๋” ๋งŽ์€ ๋ฐ”์ด๋Ÿฌ์Šค ์ž…์ž๋ฅผ ์ œ๊ฑฐํ•˜๋ ค๋ฉด ์ž์ฃผ ํšจ๊ณผ์ ์ธ ํ™˜๊ธฐ ๋ฐฉ๋ฒ•์€ ์ œ์•ˆํ•˜๊ธฐ ์œ„ํ•ด TRNSYS18์„ ํ†ตํ•ด ํ™˜๊ธฐ์‹œ์Šคํ…œ ์ข…๋ฅ˜๋ณ„ ๋‚œ๋ฐฉ ๋ฐ ๋ƒ‰๋ฐฉ ๋ถ€ํ•˜ ๊ฐ’์„ ๋น„๊ตํ•˜๊ณ  ๋ถ„์„ํ•˜์˜€๋‹ค.

Jung et al.(20)์€ ์™ธ๋ถ€์ฐจ์–‘ ์žฅ์น˜์˜ ์šด์šฉ์˜ ๋”ฐ๋ฅธ ์ฐฝํ˜ธ์˜ ๋ณต์‚ฌ ์—ด์ „๋‹ฌ์„ ํฌํ•จํ•œ ํ†ตํ•ฉ์  ๋ถ„์„์„ ์œ„ํ•ด ์™ธ๋ถ€์ฐจ์–‘์˜ ์ „๋„, ๋Œ€๋ฅ˜, ๋ณต์‚ฌ ์—ด์ „๋‹ฌ์„ ๊ฐ๊ฐ ๋ถ„์„ํ•˜์—ฌ ํ†ตํ•ฉ ์—ด์ „๋‹ฌ ๋ถ„์„์„ ์ˆ˜ํ–‰ํ•˜์˜€๋‹ค.

Ko et al.(21)์€ ์Šค๋งˆํŠธ์ฐฝํ˜ธ๋ฅผ ์ ์šฉํ•œ ๊ฑด๋ฌผ์˜ ์—๋„ˆ์ง€ ์ €๊ฐ์„ ์œ„ํ•œ ์—ฐ๊ตฌ์˜ ์ผํ™˜์œผ๋กœ SPD(Suspended Particles Devices)์˜ ์ฐฝ๋ฉด์ ๋น„ ๋ฐ SHGC๋ฒ”์œ„์— ๋”ฐ๋ฅธ ๊ฑด๋ฌผ ๋ƒ‰โ€ค๋‚œ๋ฐฉ์—๋„ˆ์ง€ ์†Œ์š”๋Ÿ‰์„ ๋ถ„์„ํ•˜์˜€๋‹ค.

Park et al.(22)์€ ๋™ํŠน์„ฑ ์‹œ๋ฎฌ๋ ˆ์ด์…˜ TRNSYS ํ”„๋กœ๊ทธ๋žจ์„ ์ด์šฉํ•˜์—ฌ ์ปคํŠผ์›” ์‹œ์Šคํ…œ์ด ์ ์šฉ๋œ ๊ฑด์ถ•๋ฌผ์˜ ๊ณต์กฐ๋ถ€ํ•˜ ์‚ฐ์ • ์‹œ ์ปคํŠผ์›” ์—ด๊ด€๋ฅ˜์œจ ์‚ฐ์ •๋ฐฉ๋ฒ• ๋ฐ ์ ์šฉ ๋ฐฉ๋ฒ•์„ ์ œ์•ˆํ•˜๊ณ  ์ปคํŠผ์›” ํ”„๋ ˆ์ž„์ด ๋ถ€ํ•˜์— ๋ฏธ์น˜๋Š” ์˜ํ–ฅ์„ ๋ถ„์„ํ•˜๊ณ , ์ปคํŠผ์›”์‹œ์Šคํ…œ ๋ฐฉ์‹์— ๋”ฐ๋ฅธ ๋ƒ‰๋‚œ๋ฐฉ๋ถ€ํ•˜๋ฅผ ๋น„๊ต๋ถ„์„ํ•˜์˜€๋‹ค.

Ahn et al.(23)์€ ๋ณด๋‹ค ์ •ํ™•ํ•œ ๊ฑด๋ฌผ์—๋„ˆ์ง€ ์˜ˆ์ธก์„ ์œ„ํ•˜์—ฌ ๊ธฐ๊ณ„ ํ•™์Šต ๋ชจ๋ธ์ธ LSTM ๊ธฐ๋ฒ•์„ ํ™œ์šฉํ•˜์˜€๋‹ค. ์Šค์ผ€์ค„ ๋ฐ์ดํ„ฐ๋ฅผ ์ž๋™์œผ๋กœ ๋ถ„์„ํ•˜์—ฌ ์˜ˆ์ธกํ•˜๋Š” ๋ชจ๋ธ์„ ์ ์šฉํ•˜์—ฌ ์ •ํ™•๋„๊ฐ€ ๋ณด์žฅ๋œ ๊ฑด๋ฌผ ์—๋„ˆ์ง€ ์˜ˆ์ธก ๋ฐฉ์•ˆ์„ ์ œ์•ˆํ•˜์˜€๋‹ค.

Choi et al.(24)์€ ์†Œ๊ทœ๋ชจ ํ˜ธํ…” ๊ฑด๋ฌผ๊ณผ ์œ ๋ฆฌ์˜จ์‹ค์ด ํ†ตํ•ฉ๋œ ๊ฑด๋ฌผ์˜ ๋ƒ‰๋‚œ๋ฐฉ ๋ถ€ํ•˜ ์‚ฐ์ •์„ ์œ„ํ•ด ์—๋„ˆ์ง€ ๋ถ€ํ•˜ ํ•ด์„์„ ์ˆ˜ํ–‰ํ•˜์˜€๋‹ค. ์ด๋ฅผ ์œ„ํ•ด ์†Œ๊ทœ๋ชจ ํ˜ธํ…”๊ณผ ์œ ๋ฆฌ์˜จ์‹ค์ด ํ†ตํ•ฉ๋œ ํ•ด์„ ๋ชจ๋ธ๊ณผ ๋ถ„๋ฆฌ๋œ ํ•ด์„ ๋ชจ๋ธ์„ ๊ฐœ๋ฐœํ•˜๊ณ  ์ด๋ฅผ ์ƒ์šฉ BES ํ”„๋กœ๊ทธ๋žจ์ธ TRNSYS๋ฅผ ์ด์šฉํ•˜์—ฌ ์—๋„ˆ์ง€ ๋ถ€ํ•˜ ํ•ด์„์„ ์ˆ˜ํ–‰ํ•˜์˜€๋‹ค.

Ko and Jeong(25)์€ ๊ฒจ์šธ์ฒ  ์™ธ๊ธฐ ์กฐ๊ฑด์— ๋”ฐ๋ฅธ ๊ฒจ์šธ์ฒ  ์ „์—ด๊ตํ™˜ ํ™˜๊ธฐ์žฅ์น˜์˜ ์ž ์—ด๊ตํ™˜ ํšจ์œจ์— ๋”ฐ๋ฅธ ๊ฒจ์šธ์ฒ ์˜ ๊ฒฐ๋กœ ๋ฐœ์ƒ ์˜จ๋„ ๋ถ„ํฌ์™€ ๊ฒฐ๋กœ ๋ฐœ์ƒ ๋นˆ๋„๋ฅผ ๊ณ„์‚ฐํ•˜์˜€๊ณ , ์ด์— ๋”ฐ๋ผ ๊ฒฐ๋กœ ๋ฐฉ์ง€๋ฅผ ์œ„ํ•ด ์š”๊ตฌ๋˜๋Š” ์˜ˆ์—ด์ฝ”์ผ์šฉ๋Ÿ‰ ์ฐจ์ด๋ฅผ ๋ถ„์„ํ•จ์œผ๋กœ์จ ์ž ์—ด๊ตํ™˜ ํšจ์œจ ์ฐจ์ด๊ฐ€ ๊ฒฐ๋กœ ๋ฐœ์ƒ ๋นˆ๋„์™€ ์˜ˆ์—ด์ฝ”์ผ์šฉ๋Ÿ‰์— ๋ฏธ์น˜๋Š” ์˜ํ–ฅ์„ ๋ถ„์„ํ•˜์˜€๋‹ค.

Kim et al.(26)์€ ์—ดํšŒ์ˆ˜ํ˜• ํ™˜๊ธฐ์‹œ์Šคํ…œ์˜ ์—๋„ˆ์ง€ ์ ˆ์•ฝ์ ์ธ ์šด์˜์— ๋Œ€ํ•œ ๊ฒ€ํ† ๋ฅผ ์œ„ํ•˜์—ฌ ๋‹ค์–‘ํ•œ ํƒ€์ž…๋ณ„ ERV์˜ by-pass ์™ธ๊ธฐ๋ƒ‰๋ฐฉ์ œ์–ด๋กœ ์ธํ•œ ์—๋„ˆ์ง€ ์ ˆ๊ฐ ํšจ๊ณผ๋ฅผ ๋ถ„์„ํ•˜๊ณ , ERV์˜ ์›”๋ณ„ by-pass ์™ธ๊ธฐ๋ƒ‰๋ฐฉ ์šด์ „์‹œ๊ฐ„ ๋น„์œจ๊ณผ ์—ด๊ตํ™˜๋˜๋Š” ํ’๋Ÿ‰, ์—ด๊ตํ™˜ ํšจ์œจ ๋“ฑ์„ ๋น„๊ตํ•˜์˜€๋‹ค.

Kim et al.(27)์€ 60์„ธ๋Œ€์˜ ์†Œ๊ทœ๋ชจ ๊ฑด์ถ•๋ฌผ์„ ์„ ์ •ํ•˜์—ฌ ํ˜„์žฅ ์‹คํƒœ์กฐ์‚ฌ๋ฅผ ๋ฐ”ํƒ•์œผ๋กœ ์ตœ๊ทผ ์‹ค๋‚ด๊ณต๊ธฐ์งˆ ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ•˜๋Š” ๋ฐฉ์•ˆ ์ค‘ ํ•˜๋‚˜์ธ ์—ด๊ตํ™˜ํ™˜๊ธฐ์žฅ์น˜ TAB๋ฅผ ๋Œ€์ƒ์œผ๋กœ ์—ฐ๊ตฌ๋ฅผ ์ง„ํ–‰ํ•˜์˜€๋‹ค. ์ด๋ฅผ ์œ„ํ•ด TAB ์ž‘์—… ์ „ํ›„์˜ ํ’๋Ÿ‰์„ ๊ณ„์ธกํ•˜์—ฌ ๋ฐธ๋Ÿฐ์Šค์ฐจ์ด์— ์˜ํ•œ ์˜ํ–ฅ์„ฑ์„ ๋ถ„์„ํ•˜์˜€๊ณ , ์—๋„ˆ์ง€์„ฑ๋Šฅ ๋ถ„์„์„ ํ†ตํ•ด TAB๊ฐ€ ๊ฑด์ถ•๋ฌผ ์—๋„ˆ์ง€์„ฑ๋Šฅ์ด ๋ฏธ์น˜๋Š” ์ •๋„๋ฅผ ํŒŒ์•…ํ•˜์˜€๋‹ค.

3.3 ์‹ค๋‚ด ํ™˜๊ฒฝ

Song et al.(28)์€ ์ตœ๊ทผ ์ž…์ž์ƒ ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ•˜๊ธฐ ์œ„ํ•ด ๋Œ€ํ‘œ์ ์ธ ์ž…์ž์ƒ ๋ฌผ์งˆ ์ „๊ตฌ์ฒด์ธ NOx๋ฅผ ์ €๊ฐํ•˜๊ธฐ ์œ„ํ•ด ํ™˜๊ธฐ ์‹œ์Šคํ…œ์— TiO2 ๊ด‘์ด‰๋งค๋ฅผ ์ ์šฉํ•˜์—ฌ ๋ถ„์„์„ ์‹ค์‹œํ•˜์˜€๋‹ค. ์‹คํ—˜์€ ๋‘ ๊ฐ€์ง€ ์กฐ๊ฑด์—์„œ ์ˆ˜ํ–‰๋˜์—ˆ์œผ๋ฉฐ, ์ฒซ ๋ฒˆ์งธ ์‹คํ—˜์€ ISO 22197-1 ์กฐ๊ฑด์— ๋งž์ถ”์–ด NOx ์ €๊ฐ ์„ฑ๋Šฅ์„ ํ™•์ธํ•˜์˜€๋‹ค.

Lee et al.(29)์€ ๋กœ์ด์ฝ”ํŒ…์˜ ์œ„์น˜ ๋ณ€ํ™”์— ๋”ฐ๋ฅธ ๊ฒฐ๋กœ๋ฐฉ์ง€์„ฑ๋Šฅ ํšจ๊ณผ๋ฅผ ๊ฒ€์ฆํ•˜๊ณ ์ž ์‹ค๊ฑฐ์ฃผ์กฐ๊ฑด์„ ๋ชจ์‚ฌํ•œ ์‹ค๊ทœ๋ชจ ๊ฑฐ์‹ค์ฐฝ์„ ๋Œ€์ƒ์œผ๋กœ KS F 2295์— ๋”ฐ๋ผ ์˜จ๋„์ฐจ์ด๋น„์œจ(TDR)์„ ์‚ฐ์ถœํ•˜์˜€๋‹ค. ์‹คํ—˜๊ตฐ์€ ์ด์ค‘์ฐฝ์˜ ๋กœ์ด์ฝ”ํŒ… ์œ„์น˜์— ๋”ฐ๋ผ ์‹ค๋‚ดโ€ค์‹ค์™ธ์ธก๊ณผ ๊ฐ„๋ด‰ ์ข…๋ฅ˜์— ๋”ฐ๋ผ ๋‹จ์—ด ๊ฐ„๋ด‰(TPS)๊ณผ ์•Œ๋ฃจ๋ฏธ๋Š„ ๊ฐ„๋ด‰(AL)์œผ๋กœ ์ด 6๊ฐ€์ง€ case๋ฅผ ์„ ์ •ํ•˜์˜€๋‹ค.

Kim et al.(30)์€ PCM ๋ฐ”๋‹ฅ๋‚œ๋ฐฉ์‹œ์Šคํ…œ์—์„œ ๋‚œ๋ฐฉ์Šค์ผ€์ค„์— ๋”ฐ๋ฅธ ์ถ•์—ด์„ฑ๋Šฅ, ํŠนํžˆ ํƒ€์ž„๋ž™(Time-lag)์„๊ธฐ์กด๋ฐฉ์‹๊ณผ ๋น„๊ต ๋ถ„์„ ํ•˜์˜€๋‹ค. ๊ธฐ์กด ๋ฐ”๋‹ฅ๋‚œ๋ฐฉ์‹œ์Šคํ…œ์€ ๊ฒฝ๋Ÿ‰๊ธฐํฌ์ฝ˜ํฌ๋ฆฌํŠธ๋ฅผ ์ถ•์—ด์žฌ๋กœ ์ด์šฉํ•˜๋ฉฐ ์ถ•์—ด์„ฑ๋Šฅ์„ ๋”์šฑ ํ–ฅ์ƒ์‹œํ‚ค๊ธฐ ์œ„ํ•ด PCM์„ ์ ์šฉํ•˜๊ณ  ์ด๋ฅผ Mock-up์œผ๋กœ ๊ตฌ์ถ•ํ•˜์—ฌ ์‹คํ—˜์— ์‚ฌ์šฉ๋˜์—ˆ๋‹ค. ์ถ•์—ด์„ฑ๋Šฅ ํ–ฅ์ƒ ์‹คํ—˜ ๊ฒฐ๊ณผ 4์‹œ๊ฐ„ ์šด์ „๋ชจ๋“œ์—์„œ ํƒ€์ž„๋ž™์€ 20๋ถ„ ๋ฐœ์ƒํ•˜์˜€๊ณ , 5์‹œ๊ฐ„ ์šด์ „๋ชจ๋“œ์—์„œ ํƒ€์ž„๋ž™์€ 25๋ถ„ ๋ฐœ์ƒํ•˜์˜€๋‹ค.

Ju et al.(31)์€ ์‚ฌ๋ฌผ์ธํ„ฐ๋„ท ๊ธฐ์ˆ ์„ ํ™œ์šฉํ•˜์—ฌ ์‹ค์ œ ๊ณต๋™์ฃผํƒ ๋‚ด ๋“œ๋ ˆ์Šค๋ฃธ์— ๊ตฌ์ถ•ํ•œ ํ…Œ์ŠคํŠธ๋ฒ ๋“œ์—์„œ ์ธก์ •ํ•œ ๋ฐ์ดํ„ฐ๋ฅผ ํ† ๋Œ€๋กœ ๊ฒฐ๋กœ ํŒ์ • ์˜ˆ์ธก ๋ชจ๋ธ์„ ๊ฐœ๋ฐœํ•˜์˜€๋‹ค. ๋˜ํ•œ, ์ œ์–ด ์•Œ๊ณ ๋ฆฌ์ฆ˜์˜ ๊ฒฐ๋กœ ๋ฐฉ์ง€ ์„ฑ๋Šฅ์„ ๊ฒ€ํ† ํ•˜๊ธฐ ์œ„ํ•˜์—ฌ ํŠน์ • ์‹œ์ ์˜ ๊ฒฐ๋กœ ์œ„ํ—˜๋„๋ฅผ ์ •๋Ÿ‰์ ์œผ๋กœ ํ‰๊ฐ€ํ•˜๋Š” ์ฒ™๋„์ธ ๊ฒฐ๋กœ ๋ฐœ์ƒ ์œ„ํ—˜๋„(CRS)๋ผ๋Š” ๊ฐœ๋…์„ ์ œ์‹œํ•˜์˜€๋‹ค.

Park and Song(32)์€ ๊ฑด๋ฌผ์—๋„ˆ์ง€ ์‹œ๋ฎฌ๋ ˆ์ด์…˜ ๊ธฐ๋ฒ•์„ ํ™œ์šฉํ•˜์—ฌ ๊ฑด๋ฌผ ์—ด์  ์„ฑ๋Šฅ์ˆ˜์ค€๋ณ„ ์™ธ์ฃผ๋ถ€์˜ ๋ณต์‚ฌํ™˜๊ฒฝ ๋ฐ ์˜จ์—ด ์พŒ์ ๊ฐ์˜ ์ฐจ์ด, ๊ทธ๋ฆฌ๊ณ  ์žฌ์‹ค์ž๊ฐ€ ์—ด์  ์พŒ์ ๊ฐ์„ ํ™•๋ณดํ•˜๊ธฐ ์œ„ํ•ด ์‹ค์‹œํ•˜๋Š” ์ ์‘ํ–‰๋™(์‹ค๋‚ด ์„ค์ •์˜จ๋„์กฐ์ ˆ) ์„ ๋ฐ˜์˜ํ•˜๋Š” ๊ฒฝ์šฐ์˜ ๋ƒ‰๋‚œ๋ฐฉ์—๋„ˆ์ง€ ์†Œ๋น„๋Ÿ‰ ์ฐจ์ด๋ฅผ ๋ถ„์„ํ•˜์˜€๋‹ค.

3.4 ๊ธฐํƒ€ ๋ถ„์•ผ

Lee et al.(33)์€ ๊ฑด๋ฌผ ์„ฑ๋Šฅ, ๊ฑด๋ฌผ ์šฉ๋„์™€ ๊ทœ๋ชจ, ์‹ ์žฌ์ƒ์—๋„ˆ์ง€ ์‹œ์Šคํ…œ ํšจ์œจ๊ณผ ๊ฐ™์€ ๋ฌผ๋ฆฌ์  ํŠน์„ฑ์— ๊ธฐ๋ฐ˜์„ ๋‘” ์—๋„ˆ์ง€์†Œ์š”๋Ÿ‰๊ณผ ์‹ ์žฌ์ƒ๋ฐœ์ „๋Ÿ‰์„ ์˜ˆ์ธกํ•˜์—ฌ ์ œ๋กœ์—๋„ˆ์ง€ ํƒ€์šด ๋‚ด ์—๋„ˆ์ง€ ์†Œ๋น„ ๋ฐธ๋Ÿฐ์Šค๋ฅผ ํ‰๊ฐ€ํ•˜๊ณ , ํƒ€์šด ๋‚ด ์‹ ์žฌ์ƒ ์—๋„ˆ์ง€์˜ ๊ณต์œ ๋ฅผ ํ†ตํ•œ ์†Œ๋น„๋Ÿ‰ ์ตœ์†Œํ™”๊ฐ€ ๊ฐ€๋Šฅํ•œ ์šด์˜ ์•Œ๊ณ ๋ฆฌ์ฆ˜๊ณผ ESS๋ฅผ ํ™œ์šฉํ•œ ์—๋„ˆ์ง€ ์ƒ์‚ฐ/๊ณต์œ /์ €์žฅ์„ ์œ„ํ•œ ์—๋„ˆ์ง€๋ฐธ๋Ÿฐ์Šค์— ๊ด€ํ•œ ์—ฐ๊ตฌ๋ฅผ ์ง„ํ–‰ํ•˜์˜€๋‹ค.

Lim and You(34)์€ ๋ฐฐ๊ด€๋ณด์˜จ์žฌ๋ฃŒ์ธ ๋ฐœํฌํด๋ฆฌ์—ํ‹ธ๋ Œํผ๊ณผ ๊ณ ๋ฌด๋ฐœํฌ๋ณด์˜จ์žฌ๋ฅผ ์„ค์น˜ ํ™˜๊ฒฝ์„ ๊ณ ๋ คํ•œ ํ™”์žฌ์‹œํ—˜์„ ํ†ตํ•ด ๋‚œ์—ฐ์„ฑ๋Šฅ์„ ๋ถ„์„ํ•˜๊ณ , ๊ตญ๋‚ด์—์„œ ์‚ฌ์šฉ์ค‘์ธ ๋‚œ์—ฐ์„ฑ๋Šฅ ํ‰๊ฐ€๋ฐฉ๋ฒ•๊ณผ ๋น„๊ตํ•˜์˜€๋‹ค.

Chang et al.(35)์€ ๊ตญ๋‚ดใ†์™ธ ์ œ๋กœ์—๋„ˆ์ง€ ๊ฑด์ถ•๋ฌผ ์ธ์ฆ๊ธฐ์ค€๊ณผ ์„ฑ๊ณต์‚ฌ๋ก€๋ฅผ ๋ถ„์„ํ•˜์—ฌ, ๊ธฐํ›„์กฐ๊ฑด๊ณผ ๊ฑด์ถ•๋ฌผ ์œ ํ˜•์— ๋งž๋Š” ๊ตญ๋‚ด ์ œ๋กœ ์—๋„ˆ์ง€ ๊ฑด์ถ•๋ฌผ ์ธ์ฆ๊ธฐ์ค€์— ๋Œ€ํ•œ ๊ฐœ์„ ์•ˆ์„ ์ œ์‹œํ•˜์˜€๋‹ค. ๊ฐœ์„ ์•ˆ์—์„œ๋Š” ํ˜„์žฌ ์ฃผ๊ฑฐ์šฉ๊ณผ ์ฃผ๊ฑฐ์šฉ ์ด์™ธ์˜ ๊ฑด์ถ•๋ฌผ๋กœ๋งŒ ๊ตฌ๋ถ„๋˜์–ด ์žˆ๋Š” ๊ฑด์ถ•๋ฌผ ์œ ํ˜•์„ ๊ฑด์ถ•๋ฌผ ์šฉ๋„์— ๋”ฐ๋ผ ์„ธ๋ถ„ํ™”ํ•˜์˜€์œผ๋ฉฐ, ์‹ ์ถ• ๊ฑด์ถ•๋ฌผ์„ ๋Œ€์ƒ์œผ๋กœ ํ•œ ์ธ์ฆ๊ธฐ์ค€ ์ด์™ธ์— ๋ฆฌ๋ชจ๋ธ๋ง ๊ฑด์ถ•๋ฌผ์„ ๋Œ€์ƒ์œผ๋กœ ํ•˜๋Š” ์ธ์ฆ๊ธฐ์ค€์„ ์ œ์‹œํ•˜์˜€๋‹ค.

Kim et al.(36)์€ ์‹ค์ œ ๊ฑด๋ฌผ ์™ธ๋ถ€๋งˆ๊ฐ์žฌ์— ๊ด‘์ด‰๋งค์ธ TiO2๋ฅผ ์ ์šฉํ•˜์—ฌ ๋Œ€๊ธฐ์˜ค์—ผ๋ฌผ์งˆ์ธ NOx์ œ๊ฑฐ ํšจ๊ณผ๋ฅผ ๋ถ„์„ํ•˜์˜€๋‹ค. ์‹คํ—˜ ๋Œ€์ƒ ๊ธฐ์ฒด๋Š” ์ผ์‚ฐํ™”์งˆ์†Œ ๋ฐ ์ด์‚ฐํ™”์งˆ์†Œ๋ฅผ ๋Œ€์ƒ์œผ๋กœ ํ•˜์˜€๋‹ค. ํ˜„์žฅ ์‹œํ—˜์— ์•ž์„œ, ์˜ˆ๋น„์‹คํ—˜์„ ํ†ตํ•ด NOx ์ €๊ฐ ํšจ๊ณผ๊ฐ€ ์ผ๋ณธ๊ด‘์ด‰๋งคํ˜‘ํšŒ์˜ NOx ์ œ๊ฑฐ ์„ฑ๋Šฅ ๊ธฐ์ค€์น˜ ์ด์ƒ์œผ๋กœ ๋“œ๋Ÿฌ๋‚˜, ํšจ๊ณผ์ ์ธ ๊ฒƒ์œผ๋กœ ๋“œ๋Ÿฌ๋‚ฌ๋‹ค.

Lee et al.(37)์€ ์ง€ํ•˜ 4์ธต, ์ง€์ƒ 30์ธต์˜ ์ฃผ์ƒ๋ณตํ•ฉ๊ฑด์ถ•๋ฌผ์„ ๋Œ€์ƒ์œผ๋กœ, ์ง€ํ•˜ 1์ธต์—์„œ ํ™”์žฌ ๋ฐœ์ƒ ์‹œ 3๊ฐ€์ง€ ๋ฐฐ์—ฐ์„ค๋น„ case์— ๋”ฐ๋ฅธ ๊ฐ€์‹œ๋„์™€ ์—ฐ๊ธฐ๋†๋„๋ฅผ ํ™”์žฌ์‹œ๋ฎฌ๋ ˆ์ด์…˜์„ ํ†ตํ•ด ๋ถ„์„ํ•˜์˜€๋‹ค.

Kim et al.(38)์€ ํ™”์žฌ ์ƒํ™ฉ์—์„œ ๋ฐ€ํํ˜• ์Šคํฌ๋ฆฐ ๋„์–ด์˜ ์„ค์น˜ ์œ ํ˜•์— ๋”ฐ๋ฅธ ํ”ผ๋‚œํ—ˆ์šฉ์‹œ๊ฐ„๊ณผ ํ”ผ๋‚œ์†Œ์š”์‹œ๊ฐ„์„ ๋ถ„์„ํ•˜๊ณ ์ž ํ•˜์˜€๋‹ค.

4. ๋ƒ‰๋™๋ถ„์•ผ

4.1 ๊ฐœ์š”

2020๋…„ ๋ƒ‰๋™๋ถ„์•ผ์—์„œ๋Š” ๋ƒ‰๋™์‚ฌ์ดํด, ํด๋ฆฌ๋จธ ํก์ฐฉ์ œ๋ฅผ ์ฝ”ํŒ…ํ•œ ํก์ฐฉ์—ด๊ตํ™˜๊ธฐ๋ฅผ ์ฑ„์šฉํ•œ ํก์ฐฉ์‹ ์น ๋Ÿฌ, R449A ํ”Œ๋ž˜์‹œํƒฑํฌ ๊ฐ€์Šค์ธ์ ์…˜ 2๋‹จ ์••์ถ• ๋ƒ‰๋™์‹œ์Šคํ…œ, ๊ฐ€์Šค์—”์ง„ ๊ตฌ๋™ ๋‹ค์‹ค์ œ์–ด ์ œ์Šต๋ƒ‰๋ฐฉ์‹œ์Šคํ…œ์— ๋Œ€ํ•œ ์—ฐ๊ตฌ๊ฐ€ ์ˆ˜ํ–‰๋˜์—ˆ๋‹ค.

4.2 ๋ƒ‰๋™์‚ฌ์ดํด

Kim et al.(39)์€ ์•Œ๋ฃจ๋ฏธ๋Š„ ํ‰ํŒ๊ด€ ์—ด๊ตํ™˜๊ธฐ์— ํด๋ฆฌ๋จธ ํก์ฐฉ์ œ๋ฅผ ์ฝ”ํŒ…ํ•œ ํ˜•ํƒœ์˜ ํก์ฐฉ๊ธฐ๋ฅผ ์ œ์ž‘ํ•˜์—ฌ ๊ตฌ์„ฑํ•œ ํก์ฐฉ์‹ ์น ๋Ÿฌ์˜ ์„ฑ๋Šฅ ์‹คํ—˜์„ ์ˆ˜ํ–‰ํ•˜์˜€๋‹ค. ํก์ฐฉ์ œ์˜ ์ข…๋ฅ˜์™€ ๋‘๊ป˜๋ฅผ ๋‹ฌ๋ฆฌํ•œ 3๊ฐœ์˜ ํก์ฐฉ๊ธฐ ์„ฑ๋Šฅ์„ ๋ถ„์„ํ•œ ๊ฒฐ๊ณผ ํก์ฐฉ์ œ์˜ ์ˆ˜๋ถ„ํ™•์‚ฐ ์†๋„๊ฐ€ ํฌ๊ณ  ์ฝ”ํŒ… ๋‘๊ป˜๊ฐ€ ์–‡์„์ˆ˜๋ก ์„ฑ๋Šฅ์ด ํ–ฅ์ƒ๋˜๋ฉฐ ์‘์ถ•๊ธฐ๋ณด๋‹ค๋Š” ํก์ฐฉ๊ธฐ์— ๊ณต๊ธ‰๋˜๋Š” ๋ƒ‰๊ฐ์ˆ˜์˜ ์˜จ๋„๋ฅผ ๋‚ฎ์ถ”์–ด ํšจ์œจ์„ ๋†’์ผ ์ˆ˜ ์žˆ๋‹ค๊ณ  ํ•˜์˜€๋‹ค.

Kang et al.(40)์€ ๋ƒ‰๋™ ์ฐฝ๊ณ ์šฉ ๋ƒ‰๋™์‹œ์Šคํ…œ์— ๋„๋ฆฌ ์“ฐ์ด๋Š” R404A์˜ ๋Œ€์ฒด๋ƒ‰๋งค๋กœ R449A๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ 1๋‹จ ์••์ถ• ์‹œ์Šคํ…œ๊ณผ ํ”Œ๋ž˜์‹œํƒฑํฌ ๊ฐ€์Šค์ธ์ ์…˜(FTVI)์„ ์ฑ„์šฉํ•œ 2๋‹จ ์••์ถ• ์‹œ์Šคํ…œ์„ ์ œ์ž‘, ์‹คํ—˜ํ•˜์—ฌ ๊ทธ ์„ฑ๋ŠฅํŠน์„ฑ์„ ๋ถ„์„ ํ•˜์˜€๋‹ค. 1๋‹จ ์••์ถ• ์‹œ์Šคํ…œ์˜ ๊ฒฝ์šฐ R449A๋Š” R404A์— ๋น„ํ•ด ๋ƒ‰๋™์šฉ๋Ÿ‰์ด ์ž‘๊ณ  ํ† ์ถœ์˜จ๋„๊ฐ€ ๋†’์•„ ์••์ถ•๊ธฐ ์†์ƒ์˜ ์œ„ํ—˜์ด ๋†’์•˜์œผ๋‚˜ R449A๋ฅผ 2๋‹จ FTVI ์‹œ์Šคํ…œ์— ์ ์šฉํ•œ ๊ฒฝ์šฐ์—๋Š” ๋ƒ‰๋™์šฉ๋Ÿ‰์ด ์ฆ๊ฐ€ํ•˜๊ณ  ํ† ์ถœ์˜จ๋„๋„ ๊ฐ์†Œํ•˜์—ฌ ์‹œ์Šคํ…œ์˜ ์‹ ๋ขฐ์„ฑ์„ ๋†’์ผ ์ˆ˜ ์žˆ๋‹ค๊ณ  ํ•˜์˜€๋‹ค.

Kim and Ahn(41)์€ 100 kWe๊ธ‰ ๊ฐ€์Šค์—”์ง„ ์—ด๋ณ‘ํ•ฉ ์‹œ์Šคํ…œ์— ์—ฐ๊ณ„ํ•œ ๋‹ค์‹ค์ œ์–ด ์ œ์Šต๋ƒ‰๋ฐฉ๊ธฐ์˜ ๋ชจ๋ธ์„ ๊ฐœ๋ฐœํ•˜๊ณ  ์šด์ „ํŠน์„ฑ๊ณผ ์˜ˆ์ธก์„ฑ๋Šฅ์„ ๋ถ„์„ํ•˜์˜€๋‹ค. ์ถ•์—ด์กฐ์— ์ €์žฅํ•œ ๋ฐฐ์—ด๋กœ ๊ตฌ๋™ํ•˜๋Š” ํ•˜์ด๋ธŒ๋ฆฌ๋“œ ๋‹ค์‹ค์ œ์–ด ์ œ์Šต๋ƒ‰๋ฐฉ๊ธฐ์™€ ๋ƒ‰๋ฐฉ๊ณต๊ฐ„์˜ ์‹œ๊ณต๋„๋ฉด ๊ตฌ์กฐ์ •๋ณด๋ฅผ ๋ฐ”ํƒ•์œผ๋กœ TRNSYS ํ™˜๊ฒฝ์— ๊ตฌ์ถ•ํ•œ ์‹œ๋ฎฌ๋ ˆ์ดํ„ฐ๋กœ ์–ป์€ ์‹œ๋ฎฌ๋ ˆ์ด์…˜ ๊ฒฐ๊ณผ์™€ ์‹ค๋‚ด ํ™˜๊ฒฝ ์‹คํ—˜์„ ํ†ตํ•ด ์–ป์€ ์‹คํ—˜๊ฒฐ๊ณผ๋ฅผ ๋น„๊ตํ•˜์—ฌ ๋ชจ๋ธ์˜ ์˜ˆ์ธก์„ฑ๋Šฅ์„ ๊ฒ€์ฆํ•˜์˜€๋‹ค.

Lee(42)์€ ๋™์‹ฌ ์›ํ†ตํ˜• ์˜๊ตฌ์ž์„์„ ์ด์šฉํ•œ ์ƒ์˜จ ์ž๊ธฐ๋ƒ‰๋™์žฅ์น˜๋ฅผ ์ œ์ž‘ํ•˜๊ณ , AMR ๋ฒ ๋“œ์— ๋‹จ์ผ๋ƒ‰๋งค์™€ ํ˜ผํ•ฉ๋ƒ‰๋งค๋ฅผ ๋„ฃ์—ˆ์„ ๋•Œ์˜ ์„ฑ๋Šฅ์„ ์‹คํ—˜ํ•˜์˜€๋‹ค. ์ž์„ฑ์žฌ๋ฃŒ๋กœ์จ Gd๋งŒ์„ ์‚ฌ์šฉํ•œ ๋‹จ์ผ๋ƒ‰๋งค์™€ Gd์™€ GdTb๋ฅผ ํ˜ผํ•ฉํ•ด์„œ ๋„ฃ์€ AMR ๋ฒ ๋“œ๋ฅผ ์ด์šฉํ•œ ์ž๊ธฐ๋ƒ‰๋™์‹œ์Šคํ…œ์˜ ์„ฑ๋Šฅ์„ ๋น„๊ตํ•˜์˜€๋‹ค.

4.3 ๊ธฐํƒ€

Yang et al.(43)์€ ์ „๊ธฐํžˆํ„ฐ์‹, ๊ณต๊ธฐ์—ด์› ๋ฐ ์ง€์—ด์› ์—ดํŽŒํ”„์‹ ๋†์‚ฐ๋ฌผ ์—ดํ’๊ฑด์กฐ๊ธฐ์˜ ์‚ฌ์ดํด ํ•ด์„์— ์˜ํ•œ ์„ฑ๋Šฅ ๋น„๊ต๋ฅผ ์‹คํ—˜๋ฐ์ดํ„ฐ๋ฅผ ๊ธฐ๋ฐ˜์œผ๋กœ ์‹ค์‹œํ•˜์˜€๋‹ค. ์ „๊ธฐํžˆํ„ฐ ์—ดํ’๊ฑด์กฐ๊ธฐ์— ๋น„ํ•ด ๊ณต๊ธฐ์—ด์› ์—ดํŽŒํ”„ ์—ดํ’๊ฑด์กฐ๊ธฐ์˜ COP๋Š” 45.0~84.6%, ์ง€์—ด์› ์—ดํŽŒํ”„ ์—ดํ’๊ฑด์กฐ๊ธฐ๋Š” 80.2~102.2% ๋†’๊ฒŒ ๋‚˜ํƒ€๋‚ฌ๋‹ค.

Kim et al.(44)์€ ๋‹จ์ผ ๊ฑด๋ฌผ์—์„œ์˜ ์‹ ์žฌ์ƒ ์—ด์—๋„ˆ์ง€ ์ƒ์‚ฐ์‹œ์Šคํ…œ์˜ ์ ์šฉ ํ•œ๊ณ„๋ฅผ ๊ทน๋ณตํ•˜๊ธฐ ์œ„ํ•ด, ์†Œ๊ทœ๋ชจ ์ค‘์•™

์ง‘์ค‘์‹ ์—ด ๋„คํŠธ์›Œํฌ์—์„œ ์งํŒฝ์‹ ํƒœ์–‘์—ด ํžˆํŠธํŽŒํ”„๊ธฐ๋ฐ˜ ๋ถ„์‚ฐํ˜• ์—ด ํ”„๋กœ์Šˆ๋จธ ๊ตฌํ˜„ ๋ฐฉ์•ˆ์„ ๋ชจ์ƒ‰ํ•˜์˜€๋‹ค. ์งํŒฝ์‹ ํƒœ์–‘์—ด ํžˆํŠธํŽŒํ”„๊ฐ€ ์—ด ํ”„๋กœ์Šˆ๋จธ๋กœ ์šด์˜๋  ๊ฒฝ์šฐ, ์ „์ฒด ํƒ€์šด ๊ธ‰ํƒ•์—๋„ˆ์ง€์˜ 51.6%๋ฅผ ๋‹ด๋‹นํ•  ์ˆ˜ ์žˆ๋Š” ๊ฒƒ์œผ๋กœ ๋‚˜ํƒ€๋‚ฌ์œผ๋ฉฐ, ๊ฑด๋ฌผ๋ณ„ ๊ธ‰ํƒ•์—๋„ˆ์ง€ ์†Œ๋น„๋Ÿ‰์˜ 37.7%๋ฅผ ์ ˆ๊ฐํ•  ์ˆ˜ ์žˆ์„ ๊ฒƒ์œผ๋กœ ์˜ˆ์ธก๋˜์—ˆ๋‹ค.

Lee and Kwon(45)์€ ์ง„๊ณต ๋ง‰์ฆ๋ฅ˜ ๊ณต์ •์„ ํ™œ์šฉํ•œ ๋ฆฌํŠฌ๋ธŒ๋กœ๋งˆ์ด๋“œ ์ˆ˜์šฉ์•ก(LiBr-water)์˜ ์žฌ๋†์ถ•์— ๊ด€ํ•œ ์—ฐ๊ตฌ์—์„œ ๊ธฐ์กด์˜ ์ฆ๋ฐœ์‹ ๋†์ถ•๊ณต์ •์„ ๋Œ€์ฒดํ•  ์ˆ˜ ์žˆ๋Š” ๋ง‰ ์ฆ๋ฅ˜๊ณต์ •์„ ํ™œ์šฉํ•˜๋Š” ๋†์ถ•๊ณต์ •์— ๋Œ€ํ•œ ์„ฑ๋Šฅ ๋ฐ ๊ฐ€๋Šฅ์„ฑ์„ ์‹คํ—˜ ๋ฐ ์ˆ˜์น˜ํ•ด์„ ๊ธฐ๋ฒ•์„ ํ†ตํ•ด ๋ถ„์„ํ•˜๊ณ  ๋…ผ์˜ํ–ˆ๋‹ค.

5. ์—ด์ „๋‹ฌ

5.1 ๊ฐœ์š”

์—ด์ „๋‹ฌ ๋ถ„์•ผ์—์„œ๋Š” ๋ฐœ์ „๊ธฐ ๋ƒ‰๊ฐ์šฉ ์—ด๊ตํ™˜๊ธฐ ์ตœ์ ํ™” ๋ฐ ์ด์ƒ๋ƒ‰๊ฐ์‹œ์Šคํ…œ์— ๊ด€ํ•œ ์—ฐ๊ตฌ๋ฅผ ๋น„๋กฏํ•˜์—ฌ ์ถ•์—ด ์„ฑ๋Šฅ, ์œ ๊ธฐ ๋žญํ‚จ ์‚ฌ์ดํด ์ž‘๋™์œ ์ฒด ์„ ์ •, ๊ฑด์ถ•๋ฌผ ์—ฐ๋ฃŒ์ „์ง€ ์‹œ์Šคํ…œ ์šฉ๋Ÿ‰ ์„ค๊ณ„, ๊ทธ๋ฆฌ๊ณ  ์˜ค๋ฆฌํ”ผ์Šค ๋‚ด๋ถ€์˜ ์ผ๋ฐ˜์ ์ธ ์บ๋น„ํ…Œ์ด์…˜ ํ˜„์ƒ์„ ์ดํ•ดํ•˜๊ธฐ ์œ„ํ•œ ์—ฐ๊ตฌ๊ฐ€ ์ˆ˜ํ–‰๋˜์—ˆ๋‹ค.

5.2 ์—ด์ „๋‹ฌ ์ผ๋ฐ˜

Jeon and Ko(46)๋Š” 20 kW๊ธ‰ ๋ฐœ์ „๊ธฐ ๋ฐฉ์—ด์— ์ ์šฉ๋  ์ˆ˜๋ƒ‰์‹ ์—ด๊ตํ™˜๊ธฐ์˜ ์ฃผ์š”์„ค๊ณ„์ธ์ž๋ฅผ ๋„์ถœํ•˜๊ณ  ์ตœ์ ํ™”๋œ ์—ด๊ตํ™˜๊ธฐ ํ˜•์ƒ ๋ฐ ์กฐ๊ฑด์„ ์„ ์ •ํ•˜๊ธฐ ์œ„ํ•œ ์—ฐ๊ตฌ๋ฅผ ์ˆ˜ํ–‰ํ•˜์˜€์œผ๋ฉฐ, ์—ด๊ตํ™˜๊ธฐ์˜ ์ฑ„๋„ ๋†’์ด ๋ฐ ํญ๊ณผ ๋ƒ‰๊ฐ์ˆ˜์˜ ์งˆ๋Ÿ‰์œ ๋Ÿ‰์ด ์—ด๊ตํ™˜๊ธฐ์˜ ์ฃผ์š”์„ค๊ณ„์ธ์ž์ž„์„ ํ™•์ธํ•˜์˜€๋‹ค.

Shin et al.(47)์€ ๋Œ€๋ฉด์  ์ „์ž์žฅ๋น„ ๋ƒ‰๊ฐ์„ ์œ„ํ•œ ์ด์ƒ๋ƒ‰๊ฐ์‹œ์Šคํ…œ์˜ ์šด์ „ ์กฐ๊ฑด์— ๋”ฐ๋ฅธ ์„ฑ๋Šฅ ๋ณ€ํ™”๋ฅผ ๊ณ ์ฐฐํ•˜์˜€๊ณ  ์ˆ˜๋ƒ‰๊ฐ์‹œ์Šคํ…œ๊ณผ ๋น„๊ตํ•˜์˜€์œผ๋ฉฐ, ์ด๋ฅผ ํ†ตํ•ด ์ด์ƒ๋ƒ‰๊ฐ์‹œ์Šคํ…œ์˜ ์—ด์ „๋‹ฌ๊ณ„์ˆ˜๊ฐ€ ์ด์ฐจ์œ ์ฒด ์ถฉ์ „๋Ÿ‰๊ณผ ์—ด์œ ์†์— ์˜ํ•ด ๋ณ€ํ™”ํ•จ์„ ๊ด€์ฐฐํ•˜์˜€๋‹ค. ๋˜ํ•œ, ํŽŒํ”„ํšŒ์ „์ˆ˜๊ฐ€ ์ผ์ • ์†๋„๋ณด๋‹ค ์ฆ๊ฐ€ํ•˜๋Š” ๊ฒฝ์šฐ ์œ ๋Ÿ‰ ์ฆ๊ฐ€์— ๋”ฐ๋ฅธ ์—ด์ „๋‹ฌ ์„ฑ๋Šฅ ์ฆ๊ฐ€ํญ์ด ๊ฐ์†Œํ•จ์„ ๊ด€์ฐฐํ•˜์˜€๋‹ค.

Yoon et al.(48)์€ ํžˆํŠธํŒŒ์ดํ”„ ํ˜•์ƒ ๋ณ€์ˆ˜์— ๋”ฐ๋ฅธ Li-ion ๋ฐฐํ„ฐ๋ฆฌ์˜ ๊ณต๋žญ์‹ ๋ƒ‰๊ฐ์„ฑ๋Šฅ์„ ์ธก์ •ํ•˜์˜€๋‹ค. ํžˆํŠธํŒŒ์ดํ”„์˜ ๊ธธ์ด ๋น„์— ๋”ฐ๋ฅธ ์—ด์ „๋‹ฌ ๋ฐ ๋ƒ‰๊ฐํŠน์„ฑ์„ ๋ถ„์„ํ•˜๊ธฐ ์œ„ํ•œ ๋ƒ‰๊ฐ์‹œ์Šคํ…œ ๋ชจ๋ธ์„ ๊ฐœ๋ฐœํ•˜์˜€๊ณ , ๋ƒ‰๊ฐ์„ฑ๋Šฅ์— ๋”ฐ๋ฅธ ์ตœ์ ์œ ๋Ÿ‰๊ณผ ํžˆํŠธํŒŒ์ดํ”„ ๊ธธ์ด ๋น„๋ฅผ ์ œ์‹œํ•˜์˜€๋‹ค.

Kim et al.(49)์€ ์‚ฐ์—…์šฉ ํ์—ด์„ ์‚ฐ์—…๊ณต์ •์šฉ ๊ณ ์šด ์—ดํŽŒํ”„์‹œ์Šคํ…œ์˜ ์ฆ๋ฐœ๊ธฐ ์—ด์›์— ์ ์šฉํ•˜๊ธฐ ์œ„ํ•ด ์ƒˆ๋กญ๊ฒŒ ๊ณ ์•ˆ๋œ ์ถ•์—ด์‹ ํŒํ˜• ์—ด๊ตํ™˜๊ธฐ์— ๋Œ€ํ•œ ์—ด์ „๋‹ฌ ํŠน์„ฑ์„ ๋ถ„์„ํ•˜์˜€๋‹ค. ์—ด๊ตํ™˜๊ธฐ์— ๊ณต๊ธ‰๋˜๋Š” ๊ณ ์˜จ์ˆ˜์˜ ๊ณต๊ธ‰์˜จ๋„์™€ ์—ด์—๋„ˆ์ง€๊ฐ€ ์ €์žฅ๋œ PCM์ธต์˜ ์ดˆ๊ธฐ ์˜จ๋„์— ๋”ฐ๋ฅธ ์—ด์ „๋‹ฌ ํŠน์„ฑ์„ ์ œ์‹œํ•˜์˜€๋‹ค.

Bae et al.(50)์€ ํก์ˆ˜์‹ ํžˆํŠธํŠธ๋žœ์Šคํฌ๋จธ์šฉ ํก์ˆ˜๊ธฐ์— ๋Œ€ํ•œ ๊ธฐ์ดˆ ์„ค๊ณ„ ๋ฐ์ดํ„ฐ๋ฅผ ์ œ๊ณตํ•˜๊ธฐ ์œ„ํ•ด ๊ธฐ์กด ํก์ˆ˜์‹ ๋ƒ‰๋™๊ธฐ์—์„œ ํก์ˆ˜๊ธฐ ์ „์—ด๊ด€์œผ๋กœ ์‚ฌ์šฉ๋œ Copper floral tube๋กค ํก์ˆ˜๊ธฐ๋ฅผ ์ œ์ž‘ํ•˜์—ฌ 1๋‹จ ํก์ˆ˜์‹ ํžˆํŠธํŠธ๋žœ์Šคํฌ๋จธ์˜ ์ž‘๋™ ์กฐ๊ฑด์—์„œ ์‹คํ—˜๊ณผ ์„ฑ๋Šฅํ‰๊ฐ€๋ฅผ ์ˆ˜ํ–‰ํ•˜์˜€๋‹ค.

Kim(51)์€ ์•ก์ฒด์งˆ์†Œ๋ฅผ ์ด์šฉํ•˜์—ฌ ๋ถ„๋ฌด๋ƒ‰๊ฐ ์‹œํ—˜์„ ์ˆ˜ํ–‰ํ•˜์˜€์œผ๋ฉฐ, ๋ง‰๋น„๋“ฑ์˜์—ญ์—์„œ ์•ก์ ์œ ๋Ÿ‰๋ฐ€๋„๊ฐ€ ๋ถ„๋ฌด๋ƒ‰๊ฐ ์—ด์ „๋‹ฌ์— ๋ฏธ์น˜๋Š” ์˜ํ–ฅ์„ ๊ด€์ฐฐํ•˜์˜€๋‹ค. ์ด๋ฅผ ํ†ตํ•ด ์•ก์ฒด์งˆ์†Œ์˜ ๋ถ„๋ฌด๋ƒ‰๊ฐ ์—ด์ „๋‹ฌ๊ณ„์ˆ˜์— ๋Œ€ํ•œ ์ƒ๊ด€ ์‹์„ ์ œ์‹œํ•˜์˜€๋‹ค. Lee et al.(52)์€ ์ง„๊ณต์—์„œ ์ „์—ด๊ด€ ํ˜•์ƒ์— ๋”ฐ๋ฅธ R718์˜ ๋ง‰์‘์ถ• ์—ด์ „๋‹ฌ๊ณ„์ˆ˜์— ๊ด€ํ•œ ์‹คํ—˜์„ ์ˆ˜ํ–‰ํ•˜์˜€๋‹ค. ์ด๋ฅผ ํ†ตํ•ด ๊ฐ ์ „์—ด๊ด€์— ๋Œ€ํ•œ Nusselt ์ƒ๊ด€์‹์„ ๋„์ถœํ•˜์˜€์œผ๋ฉฐ, Nusselt ์ˆ˜๋Š” Reynolds ์ˆ˜๊ฐ€ ์ฆ๊ฐ€ํ• ์ˆ˜๋ก ๊ฐ์†Œํ•จ์„ ํ™•์ธํ•˜์˜€๋‹ค.

5.3 ๊ธฐํƒ€

Moon et al.(53)์€ ์‹ฌ์•ผ์‹œ๊ฐ„์— ํžˆํŠธํŽŒํ”„๋ฅผ ๊ฐ€๋™์‹œ์ผœ ์—ฌ๋ฆ„์—๋Š” ์–ผ์Œ์„ ์ €์žฅํ•˜๊ณ , ๊ฒจ์šธ์—๋Š” ๊ณ ์˜จ ๋ธŒ๋ผ์ธ์„ ์ €์žฅํ•˜์—ฌ ์ฃผ๊ฐ„์‹œ๊ฐ„์— ๊ฑด๋ฌผ์˜ ๋ƒ‰๋ฐฉ ๋ฐ ๋‚œ๋ฐฉ์— ์ด์šฉํ•˜๋Š” ํ˜ผํ•ฉ์ถ•์—ด ์‹œ์Šคํ…œ์˜ ์„ฑ๋Šฅ ๊ณ ์ฐฐ์„ ์œ„ํ•ด ํžˆํŠธํŽŒํ”„, ํ˜ผํ•ฉ์ถ•์—ด์กฐ, ํŽŒํ”„, ์ž๋™์ œ์–ด์‹œ์Šคํ…œ ๋ฐ ๋ชจ์˜๋ถ€ํ•˜์žฅ์น˜๋กœ ๊ตฌ์„ฑ๋œ ํ˜ผํ•ฉ ์ถ•์—ด ์‹œ์Šคํ…œ ์‹ค์ฆ์‹œํ—˜ ์žฅ์น˜๋ฅผ ์‹ค์ œ ํ˜„์žฅ์— ๊ตฌ์ถ•ํ•˜์˜€๊ณ  ์ถ•์—ด์‹ ๋ƒ‰๋‚œ๋ฐฉ์„ค๋น„ ๊ธฐ์ˆ ๊ทœ๊ฒฉ์„ ์ค€์šฉํ•˜์—ฌ ๋ƒ‰๋ฐฉ ๋ฐ ๋‚œ๋ฐฉ ์ถ•์—ด ์„ฑ๋Šฅ ์‹œํ—˜์„ ์ˆ˜ํ–‰ํ•˜์˜€๋‹ค.

Dong and Jeong(54)์€ ์—ฌ๋ฆ„์ฒ ์— ๋ฏธํ™œ์šฉ๋˜๊ณ  ์žˆ๋Š” ์ง€์—ญ๋‚œ๋ฐฉ ์ค‘์˜จ์ˆ˜๋ฅผ ํšจ๊ณผ์ ์œผ๋กœ ์ด์šฉํ•˜๋ฉด์„œ ์•ก์ฒด์‹ ์ œ์Šต ์‹œ์Šคํ…œ์— ํ•„์š”ํ•œ ์—ด๋„ ๊ณต๊ธ‰ํ•  ์ˆ˜ ์žˆ๋Š” ORC CHP์‹œ์Šคํ…œ์— ์ ์šฉ ๊ฐ€๋Šฅ์„ฑ์ด ๋†’์€ ์นœํ™˜๊ฒฝ ์ž‘๋™์œ ์ฒด์ธ R514A, n- Pentane, R1233zd(E), ๊ทธ๋ฆฌ๊ณ  Nove649์˜ ํŠน์„ฑ์„ HFC ๊ณ„์—ด์˜ R245fa์™€ ๋น„๊ตํ•˜์—ฌ ๊ฒ€ํ† ํ•˜์˜€์œผ๋ฉฐ, Novec649๋ฅผ ์ ์šฉํ•œ ์‹ค์ œ ์‹œ์Šคํ…œ ์„ฑ๋Šฅํ‰๊ฐ€๋ฅผ ํ†ตํ•ด 50โ„ƒ ์ด์ƒ์˜ ์ˆ˜์šฉ์•ก์„ ์žฌ์ƒ๊ธฐ์— ๊ณต๊ธ‰, ์ถ”๊ฐ€ ์—ด์›์„ค๋น„ ์—†์ด ์ถฉ๋ถ„ํ•œ ์žฌ์ƒ์ด ๊ฐ€๋Šฅํ•จ์„ ํ™•์ธํ•˜์˜€๋‹ค.

Hong et al.(55)์€ ์—…๋ฌด์‹œ์„ค์„ ๋Œ€์ƒ์œผ๋กœ ์—ฐ๋ฃŒ์ „์ง€์˜ ๊ฐ€๋™ ์†์ต์„ ๋ถ„์„ํ•˜์—ฌ, ์ „๊ธฐ๋ถ€ํ•˜ ๋ฐ ์—ด๋ถ€ํ•˜ ํŠน์„ฑ์— ์œ ๋ฆฌํ•œ ์šด์˜์‹œ๋‚˜๋ฆฌ์˜ค๋ฅผ ๋„์ถœํ•˜๊ณ , ์—ฐ๋ฃŒ์ „์ง€์˜ ์ดˆ๊ธฐํˆฌ์ž๋น„์— ๋Œ€ํ•œ ๊ฐ€๋™์ด์ต ํšจ๊ณผ๋ฅผ ๊ทผ๊ฑฐ๋กœ ์—ฐ๋ฃŒ์ „์ง€ ์šฉ๋Ÿ‰ ๋ฐ ์ถ•์—ด์กฐ ์šฉ๋Ÿ‰์— ๋Œ€ํ•œ ์„ค๊ณ„๊ธฐ์ค€์„ ์ œ์‹œํ•˜์˜€๋‹ค.

Lee and Bae(56)๋Š” ์˜ค๋ฆฌํ”ผ์Šค์˜ ์„ฑ๋Šฅ ์ €ํ•˜ ๋ฐ ๊ตฌ์กฐ์  ์†์ƒ์„ ์ดˆ๋ž˜ํ•  ์ˆ˜ ์žˆ๋Š” ์˜ค๋ฆฌํ”ผ์Šค ๋‚ด๋ถ€์˜ ์ผ๋ฐ˜์ ์ธ ์บ๋น„ํ…Œ์ด์…˜ ํ˜„์ƒ์„ ์ดํ•ดํ•˜๊ธฐ ์œ„ํ•ด ์ง๊ฐ ๋ชจ์„œ๋ฆฌํ˜• ์˜ค๋ฆฌํ”ผ์Šค ๋‚ด๋ถ€์—์„œ ์บ๋น„ํ…Œ์ด์…˜ ์œ ๋™์„ ํ•ด์„ํ•˜์˜€์œผ๋ฉฐ, 2-๋ฐฉ์ •์‹ ๋ชจ๋ธ์˜ ๊ฒฝ์šฐ, SST ๋ชจ๋ธ์„ ์‚ฌ์šฉํ•˜์—ฌ ์˜ˆ์ธกํ•œ ๋ฐฉ์ถœ๊ณ„์ˆ˜์˜ ํฌ๊ธฐ๋Š” ์บ๋น„ํ…Œ์ด์…˜ ์˜์—ญ์—์„œ Nurick์˜ ์ƒ๊ด€์‹๊ณผ ์ž˜ ์ผ์น˜ํ•œ ๋ฐ˜๋ฉด ํ‘œ์ค€ ๋ชจ๋ธ์€ ์ƒ๋‹นํžˆ ๋‹ค๋ฅธ ๊ฐ’์„ ์ œ์‹œํ•จ์„ ํ™•์ธํ•˜์˜€๋‹ค.

Lee et al.(57)์€ ์ „๋ฉดํˆฌ๊ณผ์ฒด๊ฐ€ ์žˆ๋Š” ํ˜•ํƒœ๋กœ ๊ธฐ์กด ํƒœ์–‘์—ด์ง‘์—ด๊ธฐ์™€ ๋™์ผํ•œ ํฌ๊ธฐ์™€ ๊ตฌ์กฐ๋กœ ๊ฐœ๋ฐœ๋œ ํ‰ํŒํ˜• ์„œํŽœํƒ€์ธ PV/T ํƒœ์–‘์—ด์ง‘์—ด๊ธฐ์˜ ์—ด ๋ฐ ๋ฐœ์ „์„ฑ๋Šฅ์„ ์ด๋ก  ํ•ด์„ํ•˜์—ฌ ์•Œ๊ณ ๋ฆฌ์ฆ˜์„ ๊ฐœ๋ฐœํ•˜์˜€๋‹ค. ๋˜ํ•œ KS B 8295 ๊ธฐ์ค€์— ๋”ฐ๋ฅธ ์‹œํ—˜์„ ํ†ตํ•ด ๊ทธ ํƒ€๋‹น์„ฑ์„ ๋ถ„์„ํ•˜์˜€๋‹ค.

Park et al.(58)์€ ํ›„๋ฉด ํ™˜๊ธฐํ˜• BIPV ์‹œ์Šคํ…œ์— ๋Œ€ํ•œ ์ „๋ ฅ ๋ฐ ์—ด์„ฑ๋Šฅ ํŠน์„ฑ์— ๊ด€ํ•œ ํ•ด์„์  ์—ฐ๊ตฌ๋ฅผ ์ˆ˜ํ–‰ํ•˜์˜€๋‹ค. ๊ฒฐ๊ณผ๋กœ๋Š” ์ œ4์ข… ์ž์—ฐํ™˜๊ธฐ ๋ฐฉ์‹๊ณผ ์ œ3์ข… ๊ฐ•์ œํ™˜๊ธฐ ๋ฐฉ์‹์— ๋Œ€ํ•ด ๋ฌด์ฐจ์›์ˆ˜์ธ ๋ ˆ์ด๋†€์ฆˆ์ˆ˜์— ๋”ฐ๋ผ BIPV ์…€์˜จ๋„, BIPV ๋ฐœ์ „๋Ÿ‰, BIPV ๋ฐœ์ „ํšจ์œจ, BIPV ์†์‹ค์—๋„ˆ์ง€, BIPV ์œ ์šฉ์—๋„ˆ์ง€๋Œ€ํ•œ ๋ฏผ๊ฐ๋„ ๋ถ„์„์„ ์ œ์‹œํ•˜์˜€๋‹ค.

6. ๊ฒฐ ๋ก 

2020๋…„ ์„ค๋น„๊ณตํ•™ ๋…ผ๋ฌธ์ง‘์— ๋ฐœํ‘œ๋œ ๋…ผ๋ฌธ์„ ๊ฑด์ถ•๊ธฐ๊ณ„์„ค๋น„, ๊ฑด์ถ•ํ™˜๊ฒฝ, ๋ƒ‰๋™, ์—ด์ „๋‹ฌ ๋ฐ ๋ฌผ์ „๋‹ฌ ๋“ฑ 4๊ฐœ์˜ ๋ถ„์•ผ๋กœ ๋ถ„๋ฅ˜ํ•˜์—ฌ ์—ฐ๊ตฌ๋™ํ–ฅ์„ ๋ถ„์„ํ•œ ๊ฒฐ๊ณผ๋ฅผ ์š”์•ฝํ•˜๋ฉด ๋‹ค์Œ๊ณผ ๊ฐ™๋‹ค.

(1) ๊ฑด์ถ•๊ธฐ๊ณ„์„ค๋น„๋ถ„์•ผ๋Š” ์ด 19ํŽธ์˜ ์—ฐ๊ตฌ๋…ผ๋ฌธ์ด ๋ณด๊ณ ๋˜์—ˆ์œผ๋ฉฐ, ๊ทธ ์ฃผ์ œ๋กœ๋Š” ๊ทธ ์ฃผ์ œ๋กœ๋Š” ๋ƒ‰๋‚œ๋ฐฉ ๋ฐ ํ™˜๊ธฐ์‹œ์Šคํ…œ, ๋ฐ์ดํ„ฐ์„ผํ„ฐ, ํด๋ฆฐ๋ฃธ, ์‹ ์žฌ์ƒ์—๋„ˆ์ง€ ์„ค๋น„, ๊ธฐ๊ณ„์„ค๋น„๋ฒ•์— ๊ด€ํ•œ ์—ฐ๊ตฌ ๋“ฑ์ด ๋ณด๊ณ ๋˜์—ˆ๋‹ค.

(2) ๊ฑด์ถ•ํ™˜๊ฒฝ๋ถ„์•ผ๋Š” ์ด 20ํŽธ์ด ์—ฐ๊ตฌ๋…ผ๋ฌธ์ด ๋ณด๊ณ ๋˜์—ˆ์œผ๋ฉฐ, ์ฃผ์ œ๋Š” ๋ฏธ์„ธ๋จผ์ง€, ํ™˜๊ธฐ, ๊ณต๊ธฐ์ฒญ์ •๊ธฐ, ๋จธ์‹ ๋Ÿฌ๋‹, ์Œ์••๋ณ‘๋™, ๊ด‘์ด‰๋งค, COVID-19, ๊ฑด๋ฌผ์—๋„ˆ์ง€ ์„ฑ๋Šฅ ํ‰๊ฐ€ ๋“ฑ์— ๊ด€ํ•œ ์—ฐ๊ตฌ์ด์—ˆ๋‹ค.

(3) ๋ƒ‰๋™๋ถ„์•ผ๋Š” ์ด 7ํŽธ์˜ ๋…ผ๋ฌธ์ด ๋ณด๊ณ ๋˜์—ˆ์œผ๋ฉฐ, ์ฃผ์ œ๋กœ๋Š” ๋ƒ‰๋™์‚ฌ์ดํด, R-449A ๋ƒ‰๋งค, ์ œ์Šต ๋ƒ‰๋ฐฉ, ์—ดํ’๊ฑด์กฐ๊ธฐ, ํžˆํŠธํŽŒํ”„, ์ง„๊ณต ๋ง‰์ฆ๋ฅ˜ ๊ณต์ • LiBr ์žฌ๋†์ถ•, ์ž๊ธฐ ๋ƒ‰๋™์žฅ์น˜ ๋“ฑ์— ๊ด€ํ•œ ๊ฒƒ์ด์—ˆ๋‹ค.

(4) ์—ด์ „๋‹ฌ/์—ด์œ ์ฒด ๋ถ„์•ผ๋Š” ์ด 13ํŽธ์˜ ๋…ผ๋ฌธ์ด ๋ณด๊ณ ๋˜์—ˆ์œผ๋ฉฐ, ๊ทธ ์ฃผ์ œ๋Š” ํƒœ์–‘๊ด‘ ์‹œ์Šคํ…œ์˜ ์—ด์„ฑ๋Šฅ ํ•ด์„, ๋žญํ‚จ ์‚ฌ์ดํด ํŠน์„ฑ ๋ถ„์„, ์บ๋น„ํ…Œ์ด์…˜ ์œ ๋™, ์•ก์ฒด์งˆ์†Œ ๋ถ„๋ฌด๋ƒ‰๊ฐ ์—ด์ „๋‹ฌ, ํก์ˆ˜๊ธฐ ์—ด์ „๋‹ฌ, ์ถ•์—ด์„ฑ๋Šฅ, ์—ด๊ตํ™˜๊ธฐ ์ตœ์ ํ™” ๋“ฑ์— ๊ด€ํ•œ ๊ฒƒ์ด์—ˆ๋‹ค.

(5) 2020๋…„ ์„ค๋น„๊ณตํ•™ ๋…ผ๋ฌธ์ง‘์— ๋ฐœํ‘œ๋œ ๋…ผ๋ฌธ๋“ค์„ ์ฃผ์ œ์–ด(Keyword)๋กœ๋Š” ํ™˜๊ธฐ, ๋ฐ์ดํ„ฐ์„ผํ„ฐ, ์—ดํšŒ์ˆ˜ ํ™˜๊ธฐ์žฅ์น˜, ์ง€์—ด, ํก์ˆ˜์‹, ๊ฑด๋ฌผ์—๋„ˆ์ง€, ์—๋„ˆ์ง€์ ˆ๊ฐ, ์—ด์ „๋‹ฌ, ํƒœ์–‘๊ด‘, ๋Œ€์ฒด๋ƒ‰๋งค, ๋ƒ‰๋ฐฉ๋ถ€ํ•˜, ํžˆํŠธํŽŒํ”„ ๋“ฑ์ด ๋†’๊ฒŒ ๋‚˜ํƒ€๋‚ฌ์œผ๋ฉฐ, ์ฝ”๋กœ๋‚˜ ์ƒํ™ฉ์— ๋”ฐ๋ผ COVID-19, ์Œ์••๋ณ‘๋™, UV ์‚ด๊ท  ๋“ฑ์˜ ์ƒˆ๋กœ์šด ํ‚ค์›Œ๋“œ๊ฐ€ ์ œ์‹œ๋˜๊ธฐ๋„ ํ•˜์˜€๋‹ค.

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Moon S. A., Lee T. G., Kang H. K., 2020, A Study on the Thermal Storage Performance of Hybrid Thermal Storage Systems by the Field Demonstration Test, SAREK, Vol. 32, No. 10, pp. 483-489DOI
54 
Dong H. W., Jeong J. W., 2020, Working Fluid Selection and Performance Characteristics in an Organic Rankine Cycle for a Liquid Desiccant System, SAREK, Vol. 32, No. 2, pp. 58-65DOI
55 
Hong J. H., Aum T. Y., Lee J. C., 2020, A Study on the Building Energy Efficiency Rating Changes by Enhanced Thermal Insulation Performance of Building Envelope Standards in Apartment Houses, SAREK, Vol. 32, No. 4, pp. 173-178DOI
56 
Lee G. H., Bae J. H., 2020, Lessons Learned from the Prediction of Cavitating Flow inside a Sharp-edged Orifice using Different RANS Turbulence Models, SAREK, Vol. 32, No. 5, pp. 249-261DOI
57 
Lee W. J., Lim H. W., Shin U. C., 2020, Analysis of the Thermal-Electrical Performance of Serpentine PV/T Solar Collector, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 32, No. 6, pp. 288-296DOI
58 
Park J. U., Suh H. S., Lee S. J., Choi Y. S., 2020, Analytical Study on Electrical and Thermal Performance Characteristic of Back Side Ventilating Type BIPV Systems with Reynolds Number, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 32, No. 7, pp. 348-366DOI