ศักยภาพการประหยัดพลังงานในเครื่องทำน้ำเย็นรูปแบบต่างๆ ในอาคารปรับอากาศที่มีอยู่เดิม

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

อภิชิต เทอดโยธิน

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Pratuengsukpong, Chonlatos;Therdyothin, Apichit

ปีที่เผยแพร่ (ค.ศ.): 2017

วารสาร: Engineering Journal Chiang Mai University (0857-2178)

Volume number: 24

Issue number: 3

หน้าแรก: 150

หน้าสุดท้าย: 160

นอก: 0857-2178

URL: http://researchs.eng.cmu.ac.th/UserFiles/File/Journal/24_3/15.pdf

บทคัดย่อ

Recently, implementing energy saving measure without affecting usability of building has been an issue for old building. The existing building, in this study, built over 17 years, also desires to save its energy consumption by changing chiller. In recent year, there are 3 types of chiller: Fixed Speed Chiller, Variable Speed Drive Chiller and Magnetic Bearing Oil Free Chiller. In order to maximize its investment to be economically worthwhile, it has to consider all perspectives in consequence of different price and efficiency of chiller, also the age of existing building causing its usability has been diverged from building’ s norm which may not be proper for energy saving evaluation. To be accurate, we need to be aware of recent energy consumption condition. In this study, we determine 7-days energy consumption of the building to measure ratio of energy consumption. Then, we calculate chiller’ s energy consumption in the past subjected to overall area’ s energyconsumption in 2015. Ventilation flow rate is going to be measured by carbon dioxide intensity in thebuilding for estimating ventilation flow in each building’ s zones. Therefore, Energy Plus will be applied for modeling hourly cooling load throughout 2015. By comparing cooling load and monthly energy consumption from model with their actual data and error is less than 10 percent, the model, thus, will be set as base case. According to energy saving evaluation along with economic value for changing proper chiller in each types, we found that, among 4 cases, then chiller which has the highest energy saving efficiency in all cases is Magnetic Bearing Chiller, VSD Chiller and Fixed Speed Chiller respectively. Furthermore, in the investment perspective: The best chiller for cost recovery and return of investment are Magnetic Bearing Chiller (case 1,3 and 4) and VSD Chiller (case 2).

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