DEVELOPMENT OF AN ELECTRONIC CONTROLLER FOR LETTUCE PRODUCTION IN GREENHOUSES

Since the early 1900’s demand for fuel efficient vehicles has motivated the development of electric and hybrid electric vehicles. Unfortunately, some components used in these vehicles are expensive and complex. Todays consumer electric vehicles use dangerously high voltage, expensive electronic controllers, complex battery management systems and AC motors. The goal of this research at BYU is to increase safety by lowering the operating voltage and decrease cost by eliminating expensive controllers and decrease the number of battery cells. This paper specifically examines the use of a Ward Leonard Motor Control system for use in a passenger vehicle. The Ward Leonard System provides an alternative control method to expensive and complex systems used today. A Control Factor metric was developed as a result of this research to measure the Ward Leonard System’s ability to reduce the size and cost of the electronic controller for application in an EV or HEV. A bench top model of the Ward Leonard system was tested validating the Control Factor metric. The Ward Leonard system is capable of reducing the controller size by 77% and potentially reducing its cost by this amount or more. This work also provides performance characteristics for automotive designers and offers several design alternatives for EV and HEV architectures allowing a reduction in voltage, the use of AC inverters, AC motors, expensive controllers and high cell count battery packs.

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Feasibility of Quantum Computers in Cryogenic Systems

International Journal Of Engineering And Computer Science ◽

10.18535/ijecs/v9i01.4412 ◽

2020 ◽

Vol 9 (01) ◽

pp. 24919-24920

Author(s):

Viplove Divyasheesh ◽

Rakesh Jain

Keyword(s):

Quantum Computers ◽

Computing Power ◽

Quantum Bits ◽

Silicon Chips ◽

Cool Environment ◽

Quantum Processor ◽

Quantum Phenomena ◽

The Right ◽

Electronic Controller ◽

And Control

Quantum computers consist of a quantum processor – sets of quantum bits or qubits operating at an extremely low temperature – and a classical electronic controller to read out and control the processor. The machines utilize the unusual properties of matter at extremely small scales – the fact that a qubit, can represent “1” and “0” at the same time, a phenomenon known as superposition. (In traditional digital computing, transistors in silicon chips can exist in one of two states represented in binary by a 1 or 0 not both). Under the right conditions, computations carried out with qubits are equivalent to numerous classical computations performed in parallel, thus greatly enhancing computing power compared to today’s powerful supercomputers and the ability to solve complex problems without the sort of experiments necessary to generate quantum phenomena. this technology is unstable and needs to be stored in a cool environment for faster and more secure operation.In this paper, we discuss the possibility of integrating quantum computers with electronics at deep cryogenic temperatures.

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4391251 Electronic controller for controlling the air/fuel ratio of the mixture supplied to an internal combustion engine

Atmospheric Environment (1967) ◽

10.1016/0004-6981(83)90106-3 ◽

1983 ◽

Vol 17 (12) ◽

pp. 2644

Author(s):

Pierre Planteline ◽

Roger Machetel

Keyword(s):

Internal Combustion Engine ◽

Combustion Engine ◽

Internal Combustion ◽

Fuel Ratio ◽

Electronic Controller

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Automatic Adjustment Method of Digital Electronic Controller Parameters Based on Big Data Analysis

Lecture Notes in Electrical Engineering - Innovative Computing ◽

10.1007/978-981-15-5959-4_183 ◽

2020 ◽

pp. 1501-1508

Author(s):

Caihui Xiang

Keyword(s):

Big Data ◽

Data Analysis ◽

Big Data Analysis ◽

Adjustment Method ◽

Automatic Adjustment ◽

Electronic Controller

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Feasibility of Studying Fuel Mixer Design for High Power Engines Using Completely Biogas

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.889.231 ◽

2019 ◽

Vol 889 ◽

pp. 231-243

Author(s):

Thanh Phong Tran ◽

Quang Minh Nguyen ◽

Quoc Cuong Tran

Keyword(s):

High Power ◽

Internal Combustion Engines ◽

Combustion Products ◽

Combustion Engines ◽

Original Source ◽

Power Generators ◽

Crude Oil Prices ◽

Mixer Design ◽

Flour Production ◽

Electronic Controller

Nowadays, the original source of mineral fuel for engines was depleting increasingly while combustion products make the environment to be polluted, CO2emission which caused many greenhouse gases; this also makes crude oil prices fluctuate and rise. They tend to use biogas as a fuel for internal combustion engines which have been interested in the powerful countries. Supply of biogas from the waste of farms, flour production, fish processing, landfills, etc., with hundreds or thousands of cube meter of biomass daily leads demand on high-power generators using biogas in order to make good use of produced gas. This article introduces a technology solution for fuel engines using purely large-capacity biogas and operating under compression type fire. Accordingly, the tubular biogas Venturi mixer with electronic controller has been used to supply the mixture of fuel to engine. The CDI-DC ignition circuit provides a high voltage of 28kV for forced combustion of the mixture. Experimental results show that the mixer operates stably, well controlled and allows adjusting the ratio of air/fuel, as well as easily changing its speed when it is used as a hybrid engine for the generator. Some results of performance evaluation of biogas mixer will be presented in this article.

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