TY - GEN
T1 - Performance and application of combined system of liquid desiccant and R718 centrifugal heat pump
AU - Yabase, Hajime
AU - Yamaguchi, Seiichi
AU - Saito, Kiyoshi
AU - Hasuike, Hiroshi
AU - Sakamoto, Hayato
AU - Matsumoto, Satoru
AU - Harada, Masatoshi
N1 - Publisher Copyright:
© 2019 Author(s).
PY - 2019/1/25
Y1 - 2019/1/25
N2 - The air-conditioning system for buildings and facilities is required that the room temperature and the humidity are kept in a predetermined range for comfortable air-conditioning. For achieving the above only by a heat pump, the room condition should be heated till the preset temperature after cooling till the temperature from which the request humidity is obtained, and this operation is inefficient. To overcome such inefficiency, separation of latent heat and sensible heat has been proposed. This is a two-step process in which temperature and humidity are adjusted separately in two steps by combining desiccant dehumidifier and heat pump. Theoretically, the system is known to be effective in reducing energy consumption, but in practical application, this technology can be further improved. In this research, we combined the liquid desiccant equipment which can perform low temperature regeneration and R718 centrifugal heat pump suitable for high efficiency for this application. Based on this concept, we have developed a highly efficient air-conditioning system by improving element equipment and optimizing operating conditions. The performance of this system is reported here.
AB - The air-conditioning system for buildings and facilities is required that the room temperature and the humidity are kept in a predetermined range for comfortable air-conditioning. For achieving the above only by a heat pump, the room condition should be heated till the preset temperature after cooling till the temperature from which the request humidity is obtained, and this operation is inefficient. To overcome such inefficiency, separation of latent heat and sensible heat has been proposed. This is a two-step process in which temperature and humidity are adjusted separately in two steps by combining desiccant dehumidifier and heat pump. Theoretically, the system is known to be effective in reducing energy consumption, but in practical application, this technology can be further improved. In this research, we combined the liquid desiccant equipment which can perform low temperature regeneration and R718 centrifugal heat pump suitable for high efficiency for this application. Based on this concept, we have developed a highly efficient air-conditioning system by improving element equipment and optimizing operating conditions. The performance of this system is reported here.
UR - http://www.scopus.com/inward/record.url?scp=85061141551&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85061141551&partnerID=8YFLogxK
U2 - 10.1063/1.5086607
DO - 10.1063/1.5086607
M3 - Conference contribution
AN - SCOPUS:85061141551
T3 - AIP Conference Proceedings
BT - 10th International Meeting of Advances in Thermofluids, IMAT 2018 - Smart City
A2 - Yatim, Ardiyansyah
A2 - Nasruddin, null
A2 - Budiyanto, Muhammad Arif
A2 - Aisyah, Nyayu
A2 - Alhamid, Muhamad Idrus
PB - American Institute of Physics Inc.
T2 - 10th International Meeting of Advances in Thermofluids - Smart City: Advances in Thermofluid Technology in Tropical Urban Development, IMAT 2018
Y2 - 16 November 2018 through 17 November 2018
ER -
