H.Z. Hassan

article

A review on the equations of state for the working pairs used in adsorption cooling systems

H.Z. Hassan, A.A. Mohamad, Y. Alyousef, H.A. Al-Ansary

Renewable and Sustainable Energy Reviews > 2015 > 45 > C > 600-609

Adsorption cooling machines are thermally driven systems. Solar radiation, waste energy, as well as geothermal energy can be used to power these systems. Theoretical study and simulation work of adsorption-based cooling systems require the knowledge about the adsorption pair characteristics and capacities at different conditions of working pressures and temperatures. This information is obtained from...

article

Assessment of the adsorber surface density influence on the performance and operation of the intermittent SAR system

H.Z. Hassan

Energy Conversion and Management > 2015 > 94 > Complete > 19-27

The adsorber surface density is a chief factor which is strongly coupled with other design parameters and climate conditions. This parameter has a considerable impact on the behaviour and operation of the intermittent solar adsorption refrigeration (SAR) system. This paper presents a theoretical investigation of the impact of the adsorption reactor surface density on the behaviour and overall performance...

article

Dynamic analysis of the CTAR (constant temperature adsorption refrigeration) cycle

H.Z. Hassan, A.A. Mohamad, H.A. Al-Ansary, Y.M. Alyousef

Energy > 2014 > 77 > C > 852-858

The basic SAR (solar-driven adsorption refrigeration) machine is an intermittent cold production system. Recently, the CO-SAR (continuous operation solar-powered adsorption refrigeration) system is developed. The CO-SAR machine is based on the theoretical CTAR (constant temperature adsorption refrigeration) cycle in which the adsorption process takes place at a constant temperature that equals the...

article

Evaluation of the local exergy destruction in the intake and fan of a turbofan engine

H.Z. Hassan

Energy > 2013 > 63 > Complete > 245-251

Modern air crafts and aviation industry are dominant consumers of fuel. The application of exergy analysis is powerful tool in the design and performance judgment of these systems. In this study, the local entropy generated and exergy destroyed in the intake and fan of a turbofan engine are investigated. The fan in concern has a highly twisted blade and is installed in the CF6-50 turbofan engine....

article

Thermodynamic analysis and theoretical study of a continuous operation solar-powered adsorption refrigeration system

H.Z. Hassan, A.A. Mohamad

Energy > 2013 > 61 > Complete > 167-178

Due to the intermittent nature of the solar radiation, the day-long continuous production of cold is a challenge for solar-driven adsorption cooling systems. In the present study, a developed solar-powered adsorption cooling system is introduced. The proposed system is able to produce cold continuously along the 24-h of the day. The theoretical thermodynamic operating cycle of the system is based...

article

Development of a continuously operating solar-driven adsorption cooling system: Thermodynamic analysis and parametric study

H.Z. Hassan, A.A. Mohamad, H.A. Al-Ansary

Applied Thermal Engineering > 2012 > 48 > Complete > 332-341

A novel solar-driven adsorption cooling system that is able to produce cold continuously along the 24-h of the day is proposed in this study. The working principle of the proposed system is based on the constant temperature adsorption cooling cycle which is introduced also in this work. Both of the cooling system principle of operation and the cycle description are explained in details. Moreover,...

article

A review on solar cold production through absorption technology

H.Z. Hassan, A.A. Mohamad

Renewable and Sustainable Energy Reviews > 2012 > 16 > 7 > 5331-5348

Recently, the traditional energy types have failed to satisfy the human needs because of their limited quantity as well as their negative environmental impacts. Conventional cold producing machines that are based on vapor compression principle are primary electricity consumers and their working fluids are being banned by international legislation. From this perspective, solar powered cooling systems...

article

A review on solar-powered closed physisorption cooling systems

H.Z. Hassan, A.A. Mohamad

Renewable and Sustainable Energy Reviews > 2012 > 16 > 5 > 2516-2538

Cooling, refrigeration, and air conditioning processes are considered essential needs and major requirements for all human beings in our world today. However, the traditional vapor compression machines are dominating electricity consumers and their operation and propagation cause high electricity peak loads during the summer, especially in those countries with tropical climate. That is besides their...

article

An algorithm for the finite difference approximation of derivatives with arbitrary degree and order of accuracy

H.Z. Hassan, A.A. Mohamad, G.E. Atteia

Journal of Computational and Applied Mathematics > 2012 > 236 > 10 > 2622-2631

In this paper, we introduce an algorithm and a computer code for numerical differentiation of discrete functions. The algorithm presented is suitable for calculating derivatives of any degree with any arbitrary order of accuracy over all the known function sampling points. The algorithm introduced avoids the labour of preliminary differencing and is in fact more convenient than using the tabulated...

article

Simulation of an adsorption solar cooling system

H.Z. Hassan, A.A. Mohamad, R. Bennacer

Energy > 2011 > 36 > 1 > 530-537

A more realistic theoretical simulation model for a tubular solar adsorption refrigerating system using activated carbon–methanol (AC/M) pair has been introduced. The mathematical model represents the heat and mass transfer inside the adsorption bed, the condenser, and the evaporator. The simulation technique takes into account the variations of ambient temperature and solar radiation along the day...

INFONA - science communication portal

Search results for: H.Z. Hassan

A review on the equations of state for the working pairs used in adsorption cooling systems

Assessment of the adsorber surface density influence on the performance and operation of the intermittent SAR system

Dynamic analysis of the CTAR (constant temperature adsorption refrigeration) cycle

Evaluation of the local exergy destruction in the intake and fan of a turbofan engine

Thermodynamic analysis and theoretical study of a continuous operation solar-powered adsorption refrigeration system

Development of a continuously operating solar-driven adsorption cooling system: Thermodynamic analysis and parametric study

A review on solar cold production through absorption technology

A review on solar-powered closed physisorption cooling systems

An algorithm for the finite difference approximation of derivatives with arbitrary degree and order of accuracy

Simulation of an adsorption solar cooling system

Filter options

Publication date

Keywords

Journal

INFONA - science communication portal

Search results for: H.Z. Hassan

Add recipient

Sending message cancelled

Are you sure you want to cancel sending this message?

Send message

Filter options

Publication date

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

Keywords

Journal

Reporting an error / abuse

Sending the report failed

Accessibility options