Air transportation - Energy cost-effective or not

To create a cost effective environment during the management of building facilities, energy conservation is important among building users as it can help to conserve energy and reduce energy cost. To promote energy conservation, the behavior of user should be focused where their behavior should be improved to reduce energy wastage. Prompt is among the simplest and inexpensive behavioural interventions to improve energy conservation behavior. The prompt has been used wisely in healthcare sectors to promote healthy lifestyles, but no recent study on energy conservation behavior. The aim of this research was to investigate the effectiveness of prompt in prompting energy conservation behavior among the building users in university. An experiment was designed and carried out to examine the effectiveness of local and global types prompt messages for prompting efficiency use of energy. This research findings show that there was no significant difference between local and global types prompt messages, however, the findings indicate that both prompt messages were able to prompt the behavior change among the energy users and local type prompt message was more able to prompt the users than global types prompt messages. This finding could provide the useful information to society nowadays on using prompt to manage the energy efficiently.

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Performance/Economics Comparison of Sensible and Thermochemical Energy Transport Systems for Solar Thermal Dish Applications

Journal of Solar Energy Engineering ◽

10.1115/1.3268211 ◽

1987 ◽

Vol 109 (3) ◽

pp. 227-234 ◽

Cited By ~ 2

Author(s):

J. F. Muir

Keyword(s):

Energy Cost ◽

Energy Transport ◽

Cost Effective ◽

Heat Losses ◽

Solar Thermal ◽

Transport Systems ◽

Promising Alternative ◽

Solar Systems ◽

Point Of Use

A major challenge facing the development of distributed receiver solar systems is the efficient transport of high temperature thermal energy from the collectors to the point of use. As receiver temperatures increase, conventional sensible (SEN) energy transport methods become less attractive because of increased heat losses and insulation costs. A promising alternative that is particularly attractive for the high temperatures characteristic of paraboloidal dishes and the extensive piping associated with large collector fields is the concept of themochemical (TC) energy transport. Estimates of the performance and economics of 4 SEN and 2 TC transport systems for a dish collector field are compared at 4 delivery temperatures ranging from 400 to 815° C. On the basis of levelized energy cost (LEC), there is no clear choice between SEN and TC energy transport at 400°C. At higher output temperatures, TC transport is more cost-effective and is the only viable choice at temperatures above ∼700° C. The TC system based on the carbon-dioxide reforming of methane has the best performance and lowest costs at temperatures >400°C and appears closest to meeting the DOE Solar Thermal Technology (STT) Program long-term IPH goal of 3¢/kWhth (9$/MBtuth) LEC.

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Application of thermohydraulic dispatcher in low temperature district heating systems for decreasing heat carrier transportation energy cost and increasing reliability of heat supply

Journal of Physics Conference Series ◽

10.1088/1742-6596/891/1/012167 ◽

2017 ◽

Vol 891 ◽

pp. 012167 ◽

Cited By ~ 4

Author(s):

Y V Yavorovsky ◽

D O Romanov ◽

V V Sennikov ◽

I A Sultanguzin ◽

A S Malenkov ◽

...

Keyword(s):

Low Temperature ◽

Heat Carrier ◽

Energy Cost ◽

Heat Supply ◽

District Heating ◽

Transportation Energy ◽

Heating Systems ◽

District Heating Systems ◽

Carrier Transportation

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A low-energy, cost-effective approach to fruit and citrus peel waste processing for bioethanol production

Applied Energy ◽

10.1016/j.apenergy.2014.11.070 ◽

2015 ◽

Vol 140 ◽

pp. 65-74 ◽

Cited By ~ 74

Author(s):

In Seong Choi ◽

Yoon Gyo Lee ◽

Sarmir Kumar Khanal ◽

Bok Jae Park ◽

Hyeun-Jong Bae

Keyword(s):

Energy Cost ◽

Cost Effective ◽

Low Energy ◽

Waste Processing ◽

Bioethanol Production ◽

Citrus Peel ◽

Cost Effective Approach

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Evolution of the Turboprop for High Speed Air Transportation

Volume 1B: General ◽

10.1115/78-gt-201 ◽

1978 ◽

Author(s):

G. E. Holbrook ◽

G. Rosen

Keyword(s):

Fuel Consumption ◽

Noise Level ◽

High Speed ◽

Cost Effective ◽

Air Transportation ◽

Low Noise ◽

The Other ◽

Propulsion Systems ◽

Maintenance Costs ◽

Passenger Comfort

Since they first entered military and commercial service during the 1950’s, U.S.-manufactured turbopropeller engines have proved to be reliable, fuel-efficient propulsion systems for aircraft. Despite their somewhat greater mechanical complexity when comprared with turbofans, the repair and maintenance costs of the turboprops compare very favorably with those of the other types, and their substantially reduced fuel consumption and low noise level merit serious consideration for aircraft in an energy and environmentally critical future. Advancements in propeller/fan aerodynamic and structural technologies now permit flight speeds up to Mach 0.85, making turly cost-effective aircraft possible, while retaining present standards of passenger comfort and powerplant reliability.

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Usage of "smart" glass panels in commercial and residential buildings

Facta universitatis - series Architecture and Civil Engineering ◽

10.2298/fuace1102261g ◽

2011 ◽

Vol 9 (2) ◽

pp. 261-268

Author(s):

Dragan Gavrilovic ◽

Jasmina Stojic

Keyword(s):

Energy Consumption ◽

Smart Materials ◽

Energy Cost ◽

Residential Buildings ◽

Cost Effective ◽

Superior Performance ◽

Structural System ◽

Conceptual Approach ◽

Traditional Practice ◽

Glass Panels

This paper examines specific conceptual approach to the implementation of new "smart" materials having phase-changing own characteristics and maximum potential for their installation and exploitation of their performance in the commercial and residential buildings architecture. Such approach somewhat changes the usual traditional practice of installing "classical" materials, i.e. installable components into the architectural structure. The immeasurably superior performance of new elements installed in the architectural system is thus utilized, to the total energy benefit of the structural system. Using new "smart" components would result in energy cost-effective impact, reflected in the reduced the overall energy consumption of a given structure as well as in better effect sustainability of buildings in bioclimatic terms at the micro and macro levels in comparisonto the usual performance of traditionally constructed buildings.

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Linear interpolated multi-objective economic emission scheduling using grey wolf optimizer: a strategic balance and solution with diverse load pattern

COMPEL The International Journal for Computation and Mathematics in Electrical and Electronic Engineering ◽

10.1108/compel-01-2021-0022 ◽

2021 ◽

Vol ahead-of-print (ahead-of-print) ◽

Author(s):

Kalyan Sagar Kadali ◽

Moorthy Veeraswamy ◽

Marimuthu Ponnusamy ◽

Viswanatha Rao Jawalkar

Keyword(s):

Energy Cost ◽

Feasible Solution ◽

Minimum Energy ◽

Cost Effective ◽

Grey Wolf ◽

Analytical Geometry ◽

Content Type ◽

Environmentally Sustainable ◽

Penalty Factor ◽

Strategic Balance

Purpose The purpose of this paper is to focus on the cost-effective and environmentally sustainable operation of thermal power systems to allocate optimum active power generation resultant for a feasible solution in diverse load patterns using the grey wolf optimization (GWO) algorithm. Design/methodology/approach The economic dispatch problem is formulated as a bi-objective optimization subjected to several operational and practical constraints. A normalized price penalty factor approach is used to convert these objectives into a single one. The GWO algorithm is adopted as an optimization tool in which the exploration and exploitation process in search space is carried through encircling, hunting and attacking. Findings A linear interpolated price penalty model is developed based on simple analytical geometry equations that perfectly blend two non-commensurable objectives. The desired GWO algorithm reports a new optimum thermal generation schedule for a feasible solution for different operational strategies. These are better than the earlier reports regarding solution quality. Practical implications The proposed method seems to be a promising optimization tool for the utilities, thereby modifying their operating strategies to generate electricity at minimum energy cost and pollution levels. Thus, a strategic balance is derived among economic development, energy cost and environmental sustainability. Originality/value A single optimization tool is used in both quadratic and non-convex cost characteristics thermal modal. The GWO algorithm has discovered the best, cost-effective and environmentally sustainable generation dispatch.

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