CalVaDet has an insulated cylindrical vessel enclosing a top cap unit equipped with multiple electrodes and a crucible for holding the sample. Unlike conventional bomb calorimeters, CalVaDet integrates the bomb and water jacket into a single compact setup, simplifying operation and improving accuracy. The method involves placing a heterogeneous material sample in the crucible, filling the vessel with fluid, supplying oxygen and AC voltage for combustion, and measuring the resulting temperature rise with multiple thermocouples. This setup enables precise CV determination for larger, more representative samples of heterogeneous materials.
Determining the calorific value (CV) of heterogeneous materials such as municipal solid waste, biomass, and industrial wastes is challenging due to the limitations of conventional bomb calorimeters (BC). Conventional BCs can only test small sample volumes (~10cc), which is insufficient for obtaining representative samples of heterogeneous materials. The presence of stirrers and single-point temperature measurements in conventional BCs can lead to erroneous results.
- Accurate Calorific Value Determination: The system is capable of precisely measuring the calorific value of heterogeneous materials, ensuring reliable energy content assessment.
- Larger Sample Handling: It accommodates larger sample volumes compared to conventional bomb calorimeters, making it suitable for analyzing mixed or bulky waste materials.
- Simplified and Compact Design: The setup features a user-friendly, compact design that simplifies operation and reduces space requirements in the laboratory.
- Multi-Point Temperature Measurement: Multiple temperature sensors enhance measurement accuracy by capturing thermal variations at different points within the system.
- Cost-Effective and Efficient: This method offers a more economical and efficient alternative to traditional incinerator-based approaches, making it ideal for routine calorific analysis.
The frugal aspects of CalVaDet lie in its cost-effective design and efficient use of resources:
- Single-Vessel Construction: Unlike conventional bomb calorimeters, which have separate vessels for the bomb and water jacket, CalVaDet integrates both into a single vessel. This simplifies the design, reducing manufacturing costs and minimizing the need for additional components.
- No Stirrer Requirement: By using four thermocouples at different heights for accurate temperature measurement, CalVaDet eliminates the need for a mechanical stirrer. This not only cuts down on equipment costs but also avoids the maintenance and energy requirements associated with using a stirrer.
Larger Crucible for Representative Sampling: The larger crucible allows for testing bigger and more heterogeneous samples in one go, reducing the need for multiple tests and thereby saving time, resources, and effort.
These features make CalVaDet a cost-efficient and resource-conserving solution for measuring the calorific value of complex solid wastes, which is especially beneficial in industrial and research settings with limited budgets.
The technology has been tested and validated in the lab with standard homogeneous material and also for heterogeneous samples. Results were satisfactory and accurate, samples with same categories had lesser deviation, hence proving the uniqueness of the system.
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The CalVaDet apparatus provides a more accurate and efficient method for determining the calorific value of heterogeneous materials, leading to better waste management and energy recovery practices. By enabling more precise energy content measurements of municipal solid waste, biomass, and industrial wastes, this invention can help optimize waste-to-energy processes, reduce environmental pollution, and promote sustainable energy solutions.
- Municipal solid waste management.
- Biomass energy production.
- Industrial waste management.
- Energy content analysis in environmental engineering.
Geography of IP
Type of IP
202121031251
494087