Experimental Investigation of the Energy Needs for a Conventionally and an Infrared-Heated Greenhouse

The objective of greenhouse heating is to maintain the canopy at a specified temperature range. Infrared (IR) heating as alternative to forced air heating. Use of a simple numerical model to estimate the potential energy savings in a greenhouse.

Подобные документы

  • The essence of temperature is one of the most important factors affecting the coefficient of dielectric loss. This paper presents the investigation of temperature dependences of the microwave dielectric losses for different mechanisms of polarization.

    статья, добавлен 29.01.2017

  • The two dimensional magnetic micropolar generalized thermoelastic medium, in the presence of the effect of Hall currents. Laplace and exponential Fourier transform techniques are employed to transform the governing partial differential equations to ODE.

    статья, добавлен 22.03.2016

  • History of origin and development of the electrotechnical industry. Characteristics and distribution of transformers, their features and purpose. High voltage DC technology. Consequences of absence of electric energy storage in transmission systems.

    контрольная работа, добавлен 20.02.2019

  • Molecular–statistical model of the organization of the epitropic liquid-crystal phase. The experimental temperature dependences of the thickness of the epitropic liquid crystalline layers nitroben zene on quartz. The thermodynamic model parameters.

    статья, добавлен 23.11.2016

  • A study of the incidence set the value of Skyrmeparameters. Characteristic of the radii of the valence neutrons orbits in the mode energy of multiple cores. How to limit values Skyrme parameters. Sketch of the contemporary state of nuclear matter.

    статья, добавлен 07.10.2013

  • The analytical expression for the calculation of the relay mode frequency and power. Development of parameters of electric energy converters. The absence of the phase shift between voltage and current. Solution EMC problems. The reduction of power losses.

    статья, добавлен 29.07.2016

  • Consideration of the features of the energy of thermonuclear fusion. Study of the problems of nuclear power plants. The radiation hazard assessment. Devices designed to determine the level of radiation. The principle of operation of the Geiger counter.

    статья, добавлен 20.02.2019

  • Calculation of equations for determination of the quadrupole spin fluctuations nuclear ellipsoid of inertia. Determination of mass, quasi-classical, hydrodynamic option for turning y-rigid, based on the measure of the energy of nuclei along y-axis.

    статья, добавлен 11.11.2013

  • Evaluation of the effectiveness of the use of piezoelectric technology for the accumulation of energy produced by moving cars. Street lightening using piezoelectric roads. Electricity derived from fossil fuels. Israeli roads using piezoelectricity.

    статья, добавлен 24.02.2019

  • The temperature and frequency dependences of the impedance components of PbTe(In) nanocrystalline lms within the frequency range of 20 Hz–1 MHz in the temperature interval of 4.2–300 K in darkness and under illumination. The lms on a glass substrate.

    статья, добавлен 28.06.2013

  • The theoretical analysis of the behaviour of the stream function, temperature, and local solid fraction for the model of ideal mushy layer. Estimates for the main characteristics of the process are found for the large values of the Rayleigh number.

    статья, добавлен 25.03.2016

  • At deuteron energy of 37 MeV the 6He inclusive spectra are measured in the exit channel of reaction 7Li(d,6He)3He. Structure of 6He spectra explained by processes of excitation and decay of 7Li and 7He unbound states in accompanied reaction channels.

    статья, добавлен 14.11.2013

  • Steam turbines design. Classification of steam turbines according to the method of energy conversion, according to the direction of flow, according to the number of stages, according to the speed of rotation, according to the steam pressure at the outlet.

    презентация, добавлен 12.11.2022

  • Modern cosmological models describing the macrocosm. A comparative estimate of the maximum lifetime of a de Sitter universe obtained by the method of Don Page and made in the framework of string theory. Paradoxes of phantom energy and quantum mechanics.

    статья, добавлен 23.06.2018

  • Calculation of the average neutron energy. The converter of thermal neutrons. The reactor core. Radiography and tomography tumor contour. Project progress MEDAPP. Irradiation of the cell cultures. Determination of biological efficacy of a new beam.

    статья, добавлен 06.11.2013

  • The design of mass spectrometer on charge detection. The determination of mass distribution of various macromolecules and nanoparticles. Access to intrinsic features such as fragmentation patterns and unimolecular dissociation activation energy.

    статья, добавлен 30.07.2016

  • A numerical technique has been used slove the carrier transport equations for PbSnTe photodiode configurations. The model computes the spatial distribution of the electric field, electron concentrations and the generation-recombination of the mechanism.

    статья, добавлен 28.06.2013

  • The development of microbial fuel cells can solve this problem. MFCs are devices that generate the electrical energy from various biological objects. Energy effectiveness of different microbial sources is an essential step in the development of MFCs.

    статья, добавлен 24.02.2024

  • Technological development of clean energy vehicles. Observation of the earth and climate change predictio. International Efforts as Science and Technology Diplomacy. Promoting Science, Technology Needed for the Future. Lives of the Japanese Public.

    статья, добавлен 16.02.2011

  • Connection graph theory and formulation of general class physical systems over force interactions. Force factors are effort and flow. Different interpretations in different physical fields. Using power to simulate connected systems in energy fields.

    статья, добавлен 28.08.2020

  • Possible directions to normalize the fuel and energy balance of Ukraine. Necessity of technical upgrade and modernization of allocated boiler installations, as well as reequipment and modernization of power plants industrial sites infrastructure.

    статья, добавлен 29.11.2016

  • The principle of converting electrical energy into mechanical energy by an electromagnetic field. The invention and introduction to the production of a perfect electric generator. The essence and specificity of the principle of electromagnetic induction.

    контрольная работа, добавлен 19.02.2019

  • Analysis of the use of a combined solar collector for heat supply of buildings to enhance the efficiency of solar system by increasing the surface area of absorption of solar energy. The study of the intensity of the solar radiation on the collector.

    статья, добавлен 24.02.2016

  • The different microscopic models employed to calculate the temperature and concentration dependence of the susceptibility of ferrouids: Weiss, mean-spherical, and high-temperature. The convective instability in microscopic understanding of magnetism.

    статья, добавлен 11.09.2012

  • Investigation of size effects in hydrogen-bonded crystals by numerical solution of the kinetic equation in finite differences, by finite difference method Calculation of the current density of thermally stimulated depolarization in finite differences.

    реферат, добавлен 24.10.2014

Работы в архивах красиво оформлены согласно требованиям ВУЗов и содержат рисунки, диаграммы, формулы и т.д.
PPT, PPTX и PDF-файлы представлены только в архивах.
Рекомендуем скачать работу и оценить ее, кликнув по соответствующей звездочке.