Proposal of an eco-friendly high-performance air-conditioning system part 2. Application of evapo-transpiration condenser to residential air-conditioning system

Huynh Thi Minh Thu, Haruki Sato

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Improving performance of existing air-conditioning system and minimizing its environmental effect are requested from global environmental issues. A new air-conditioning system using evapo-transpiration condenser has been proposed. Evapo-transpiration condenser is a condenser that uses transpiration by keeping condenser surface wet and water evaporation enhancing heat-transfer rate. In this paper, a prototype of the new system is tested and compared with the existing system in summer weather of Japan. Hourly-average condenser-temperature is achieved to be 5-10 C reduction compared to that of the air-cooled condenser. Without any optimization in system operation, up to more than 30% hourly integral power consumption is saved at ambient temperature below 31 C from this prototype. Besides, temperature of outlet-air from outdoor-unit is nearly the same as ambient temperature, while its relative humidity is slightly higher. Special maintenance is not necessary for the new evapo-transpiration condenser.

Original languageEnglish
Pages (from-to)1596-1601
Number of pages6
JournalInternational Journal of Refrigeration
Volume36
Issue number6
DOIs
Publication statusPublished - 2013 Sep

Fingerprint

Transpiration
Air conditioning
Temperature
Air
Environmental impact
Atmospheric humidity
Evaporation
Electric power utilization
Heat transfer
Water

Keywords

  • Air conditioning
  • Energy saving
  • Evapo-transpiration condenser
  • Heat island
  • Waste-heat

ASJC Scopus subject areas

  • Mechanical Engineering
  • Building and Construction

Cite this

Proposal of an eco-friendly high-performance air-conditioning system part 2. Application of evapo-transpiration condenser to residential air-conditioning system. / Minh Thu, Huynh Thi; Sato, Haruki.

In: International Journal of Refrigeration, Vol. 36, No. 6, 09.2013, p. 1596-1601.

Research output: Contribution to journalArticle

@article{d019f39583124b74a710dae425349ba9,
title = "Proposal of an eco-friendly high-performance air-conditioning system part 2. Application of evapo-transpiration condenser to residential air-conditioning system",
abstract = "Improving performance of existing air-conditioning system and minimizing its environmental effect are requested from global environmental issues. A new air-conditioning system using evapo-transpiration condenser has been proposed. Evapo-transpiration condenser is a condenser that uses transpiration by keeping condenser surface wet and water evaporation enhancing heat-transfer rate. In this paper, a prototype of the new system is tested and compared with the existing system in summer weather of Japan. Hourly-average condenser-temperature is achieved to be 5-10 C reduction compared to that of the air-cooled condenser. Without any optimization in system operation, up to more than 30{\%} hourly integral power consumption is saved at ambient temperature below 31 C from this prototype. Besides, temperature of outlet-air from outdoor-unit is nearly the same as ambient temperature, while its relative humidity is slightly higher. Special maintenance is not necessary for the new evapo-transpiration condenser.",
keywords = "Air conditioning, Energy saving, Evapo-transpiration condenser, Heat island, Waste-heat",
author = "{Minh Thu}, {Huynh Thi} and Haruki Sato",
year = "2013",
month = "9",
doi = "10.1016/j.ijrefrig.2013.04.006",
language = "English",
volume = "36",
pages = "1596--1601",
journal = "International Journal of Refrigeration",
issn = "0140-7007",
publisher = "Elsevier Limited",
number = "6",

}

TY - JOUR

T1 - Proposal of an eco-friendly high-performance air-conditioning system part 2. Application of evapo-transpiration condenser to residential air-conditioning system

AU - Minh Thu, Huynh Thi

AU - Sato, Haruki

PY - 2013/9

Y1 - 2013/9

N2 - Improving performance of existing air-conditioning system and minimizing its environmental effect are requested from global environmental issues. A new air-conditioning system using evapo-transpiration condenser has been proposed. Evapo-transpiration condenser is a condenser that uses transpiration by keeping condenser surface wet and water evaporation enhancing heat-transfer rate. In this paper, a prototype of the new system is tested and compared with the existing system in summer weather of Japan. Hourly-average condenser-temperature is achieved to be 5-10 C reduction compared to that of the air-cooled condenser. Without any optimization in system operation, up to more than 30% hourly integral power consumption is saved at ambient temperature below 31 C from this prototype. Besides, temperature of outlet-air from outdoor-unit is nearly the same as ambient temperature, while its relative humidity is slightly higher. Special maintenance is not necessary for the new evapo-transpiration condenser.

AB - Improving performance of existing air-conditioning system and minimizing its environmental effect are requested from global environmental issues. A new air-conditioning system using evapo-transpiration condenser has been proposed. Evapo-transpiration condenser is a condenser that uses transpiration by keeping condenser surface wet and water evaporation enhancing heat-transfer rate. In this paper, a prototype of the new system is tested and compared with the existing system in summer weather of Japan. Hourly-average condenser-temperature is achieved to be 5-10 C reduction compared to that of the air-cooled condenser. Without any optimization in system operation, up to more than 30% hourly integral power consumption is saved at ambient temperature below 31 C from this prototype. Besides, temperature of outlet-air from outdoor-unit is nearly the same as ambient temperature, while its relative humidity is slightly higher. Special maintenance is not necessary for the new evapo-transpiration condenser.

KW - Air conditioning

KW - Energy saving

KW - Evapo-transpiration condenser

KW - Heat island

KW - Waste-heat

UR - http://www.scopus.com/inward/record.url?scp=84883134542&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84883134542&partnerID=8YFLogxK

U2 - 10.1016/j.ijrefrig.2013.04.006

DO - 10.1016/j.ijrefrig.2013.04.006

M3 - Article

AN - SCOPUS:84883134542

VL - 36

SP - 1596

EP - 1601

JO - International Journal of Refrigeration

JF - International Journal of Refrigeration

SN - 0140-7007

IS - 6

ER -