Performance assessment of radiant cooling system integrated with desiccant assisted DOAS with solar regeneration

被引：25

作者：

Khan, Yasin ^{[1
]}

Singh, Gaurav ^{[1
]}

Mathur, Jyotirmay ^{[1
]}

Bhandari, Mahabir ^{[2
]}

Srivastava, Prateek ^{[1
]}

机构：

[1] Malaviya Natl Inst Technol, Ctr Energy & Environm, Jaipur 302017, Rajasthan, India

[2] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

来源：

APPLIED THERMAL ENGINEERING | 2017年 / 124卷

关键词：

HOT; VENTILATION; BUILDINGS; DEHUMIDIFICATION; CLIMATE;

D O I：

10.1016/j.applthermaleng.2017.06.052

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The Radiant cooling system integrated with Dedicated Outdoor Air System (DOAS) is a viable substitution for conventional all air system in order to reduce primary energy consumption, as it decouples the cooling and ventilation task. In DOAS major portion of energy is consumed in cooling coil where it dehumidifies the process supply air. This study describes an alternate solution for dehumidification, with the substitution of the desiccant wheel with solar regeneration in place of a chilled water coil based dehumidifier. In this paper, simulations were carried out using EnergyPlus on a reference medium office building to investigate the contribution of solar energy towards the total energy consumption of desiccant assisted DOAS with radiant cooling system. To evaluate the system performance and energy saving potential, desiccant based DOAS is compared with cooling coil assisted DOAS integrated with Radiant cooling system. Simulations were carried out for different solar collector area to evaluate primary energy savings. Results indicate that from 7.4% to 28.6% energy saving (according to different collector area) can be achieved due to the solar regeneration in desiccant assisted DOAS, the impact of different solar collector area on potential of energy savings is also described. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：1075 / 1082

页数：8

共 33 条

[1]

[Anonymous], 2010, US HDB SOL WAT HEAT

[2]

[Anonymous], ASHRAE J

[3] Experimental assessment of a solar desiccant cooling system for an institutional building in subtropical Queensland, Australia [J].

Baniyounes, Ali M. ;

Rasul, M. G. ;

Khan, M. M. K. .

ENERGY AND BUILDINGS, 2013, 62 :78-86

[4] Performance of desiccant dehumidification with hydronic radiant cooling system in hot humid climates [J].

Binghooth, A. S. ;

Zainal, Z. A. .

ENERGY AND BUILDINGS, 2012, 51 :1-5

[5] The optimization of the operation of a solar desiccant air handling unit coupled with a radiant floor [J].

Cejudo Lopez, Jose M. ;

Fernandez Hernandez, Francisco ;

Dominguez Munoz, Fernando ;

Carrillo Andres, Antonio .

ENERGY AND BUILDINGS, 2013, 62 :427-435

[6]

Deru M., 2011, U.S. department of energy commercial reference building models of the national building stock

[7]

ECBC, 2013, US GUID EN CONS BUIL

[8]

Fabrizio E., 2012, HVAC&R RES, P37

[9] Investigation on solar hybrid desiccant cooling system for commercial premises with high latent cooling load in subtropical Hong Kong [J].

Fong, K. F. ;

Lee, C. K. ;

Chow, T. T. ;

Fong, A. M. L. .

APPLIED THERMAL ENGINEERING, 2011, 31 (16) :3393-3401

[10] Solar hybrid cooling system for high-tech offices in subtropical climate - Radiant cooling by absorption refrigeration and desiccant dehumidification [J].

Fong, K. F. ;

Chow, T. T. ;

Lee, C. K. ;

Lin, Z. ;

Chan, L. S. .

ENERGY CONVERSION AND MANAGEMENT, 2011, 52 (8-9) :2883-2894

← 1 2 3 4 →