Browsing AUT Faculties by Author "Nates, R"
Now showing items 1-16 of 16
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Convective Heat Loss Investigation From a Coupled Parabolic Dish Receiver System
Uzair, M; Anderson, TN; Nates, R (Department of Mechanical Engineering, Auckland University of Technology and Department of Mechanical Engineering, University of Auckland, 2017)INTRODUCTION Among all concentrating solar power (CSP) techniques, parabolic dishes are the most efficient system due to their higher concentration ratio and temperatures achieved inside the cavity receivers. Due to ... -
The Effect of Wind on the Performance of Multiple Short Natural Draft Dry Cooling Towers
Khamooshi, M; Anderson, TN; Nates, R (Australasian Fluid and Thermal Engineering Society (AFTES), 2018)The layout of multiple natural draft dry cooling towers can have an influence on the performance of the cooling system in concentrated solar power (CSP) plants. Hence, the aim of this study was to investigate the effect ... -
The Effect of Wind on the Performance of the Three Short Natural Draft Dry Cooling Towers in an In-line Arrangement
Khamooshi, M; Anderson, T; Nates, R (Australian PV Institute (APVI), 2018)Natural draft dry cooling tower (NDDCT) are a favourable choice for the cooling system of concentrated solar thermal power (CSP) plants located in arid regions with high solar radiation. However, additional cooling towers ... -
Impact of Dish Structure on the Convective Heat Loss From a Parabolic Dish Solar Cavity Receiver
Uzair, M; Anderson, T; Nates, R (Australian PV Institute, 2016)Parabolic dish cavity receivers achieve higher operating temperatures by using higher concentration ratios from larger dish structures, which in turn incur greater costs. Many studies have focused on understanding the heat ... -
Impact of Tower Spacing on the Performance of Multiple Natural Draft Dry Cooling Towers Under No Wind Conditions
Khamooshi, M; Anderson, TN; Nates, R (Department of Mechanical Engineering, Auckland University of Technology and Department of Mechanical Engineering, University of Auckland, 2017)INTRODUCTION Natural draft dry cooling towers (NDDCT) are an important part of concentrated solar power (CSP) plants in that they dictate the flow of air over the condenser. Under no wind ... -
Mathematical modeling of a solar powered humidification dehumidification desalination prototype
Enayatollahi, R; Anderson, T; Nates, R (Solar 2014 Conference & Expo, 2014)In recent times the issue of fresh water shortages and salinity contamination of existing water sources has become a serious problem in a number of locations around the world. Hence, developing an environmentally friendly ... -
Modelling the performance of a Diffusion Absorption Refrigeration System
Yousuf, N; Biteau, E; Anderson, T; Gschwendtner, M; Nates, R (Australian PV Institute (APVI), 2014)The diffusion absorption refrigeration cycle was first identified nearly a century ago but until relatively recently its application had been limited to niche cooling applications such as camping refrigerators. The diffusion ... -
A Numerical Investigation of the Influence of Wind on Multiple Short Natural Draft Dry Cooling Towers
Khamooshi, M; Anderson, TN; Nates, R (Australian PV Institute, 2017)The deployment of concentrating solar thermal power (CSP) plants in arid areas necessitatesthe use of dry cooling systems to reject heat from the condenser. As modular CSP plants are expanded, likewise there is a need to ... -
Performance of a Cooling System Driven by Engine Exhaust Heat
Yousuf, N; Anderson, T; Gschwendtner, M; Nates, R (International Institute of Refrigeration, 2016)The use of stationary generators for electricity generation is widespread in areas where access to power distribution networks is limited, including rural areas and in developing countries. Often, a significant portion of ... -
Predicting the Pumping Characteristics of Multiple Parallel Tube Air-lift Pumps
Yousuf, N; Anderson, T; Gschwendtner, M; Nates, R (Australasian Fluid Mechanics Society, 2016)Air-lift pumps have begun to receive a high degree of attention due to the absence of mechanical components and the potential for their use in renewable energy applications. One of the principal challenges of the air-lift ... -
Solar Potential Assessment of Facades in an Urban Context: An Algorithm for 1.5D Digital Surface Models
Rehman, N; Anderson, T; Nates, R (Australian PV Institute, 2016)An algorithm for estimating solar energy potential of facades in an urban context is proposed in this paper. The potential is presented in terms of the ratio of direct solar energy accumulated on facades when shadowing ... -
Solar Potential Assessment of Facades in an Urban Context: An Algorithm for 2.5D Digital Surface Models
Rehman, N; Anderson, TN; Nates, R (Australian PV Institute, 2017)As urban environments become more complex and built-up there is reduced space on roofs for photovoltaic systems, meaning there is an opportunity to develop façade (wall) integrated photovoltaic systems. However, to facilitate ... -
Structural Deformation of Sandwich Composite Heliostats
Anderson, T; Fadlallah, S; Nates, R (Australian PV Institute (APVI), 2018)The cost of heliostats has a significant influence on the cost of central tower concentrating solar power systems. To address this issue there is a need for new innovative heliostat designs that can reduce the heliostats’ ... -
Trying-out Digital Technologies in Trying Times: A Collection of Observations From a Collegial Adventure During Covid-19
Hooper, P; Anderson, T; Nates, R; Moir, T; Beckerleg, M; Protheroe, M; Whittington, C; Hadrup, M (Australasian Association for Engineering Education (AAEE), 2020)CONTEXT In recent decades there has been significant discussion in the popular press about digital technologies enabling society to transition to a working-from-home scenario. Similarly, literature in the engineering ... -
A Validated Simulation of Wind Flow Around a Parabolic Dish
Uzair, M; Anderson, T; Nates, R; Jouin, E (Australian PV Institute (APVI), 2015)The thermal performance of solar parabolic dish systems is greatly influenced by the wind around the system. To achieve higher operating temperatures, larger dish structures are used to increase the concentration ratio, ... -
Wind flow around a parabolic dish solar concentrator
Uzair, M; Anderson, T; Nates, R (Australian PV Institute (APVI), 2014)Wind flow around parabolic dish solar concentrators can significantly affect the loss of heat from the receiver, and thus the performance of these systems. Numerous studies have examined the heat loss from various receiver ...